Home / 103,061.70-142,229.21-57,740.04

Finding the Fourth Proportional to 103,061.70, 142,229.21 and 57,740.04

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Solution

The fourth proportional to 103,061.70, 142,229.21 and 57,740.04 is: 79,683.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,061.70 : 142,229.21 = 57,740.04 : x
  2. Step 2: Convert to fraction form
    103,061.70/142,229.21 = 57,740.04/x
  3. Step 3: Cross multiply
    103,061.70x = 142,229.21 × 57,740.04
  4. Step 4: Simplify right side
    103,061.70x = 8,212,319,985.87
  5. Step 5: Solve for x
    x = 8,212,319,985.87/103,061.70
  6. Step 6: Final answer
    x = 79,683.53

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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.