Home / 103,157.28-142,356.96-57,835.62

Finding the Fourth Proportional to 103,157.28, 142,356.96 and 57,835.62

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Solution

The fourth proportional to 103,157.28, 142,356.96 and 57,835.62 is: 79,813.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,157.28 : 142,356.96 = 57,835.62 : x
  2. Step 2: Convert to fraction form
    103,157.28/142,356.96 = 57,835.62/x
  3. Step 3: Cross multiply
    103,157.28x = 142,356.96 × 57,835.62
  4. Step 4: Simplify right side
    103,157.28x = 8,233,303,042.92
  5. Step 5: Solve for x
    x = 8,233,303,042.92/103,157.28
  6. Step 6: Final answer
    x = 79,813.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.