Home / 121,347.90-182,103.86-42,462.81

Finding the Fourth Proportional to 121,347.90, 182,103.86 and 42,462.81

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Solution

The fourth proportional to 121,347.90, 182,103.86 and 42,462.81 is: 63,722.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,347.90 : 182,103.86 = 42,462.81 : x
  2. Step 2: Convert to fraction form
    121,347.90/182,103.86 = 42,462.81/x
  3. Step 3: Cross multiply
    121,347.90x = 182,103.86 × 42,462.81
  4. Step 4: Simplify right side
    121,347.90x = 7,732,641,713.60
  5. Step 5: Solve for x
    x = 7,732,641,713.60/121,347.90
  6. Step 6: Final answer
    x = 63,722.91

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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.