Home / 121,731,813.92-182,166,688.28-75,695,361.86

Finding the Fourth Proportional to 121,731,813.92, 182,166,688.28 and 75,695,361.86

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Solution

The fourth proportional to 121,731,813.92, 182,166,688.28 and 75,695,361.86 is: 113,275,017.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,731,813.92 : 182,166,688.28 = 75,695,361.86 : x
  2. Step 2: Convert to fraction form
    121,731,813.92/182,166,688.28 = 75,695,361.86/x
  3. Step 3: Cross multiply
    121,731,813.92x = 182,166,688.28 × 75,695,361.86
  4. Step 4: Simplify right side
    121,731,813.92x = 13,789,173,388,192,420
  5. Step 5: Solve for x
    x = 13,789,173,388,192,420/121,731,813.92
  6. Step 6: Final answer
    x = 113,275,017.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.