Home / 103,646.55-155,220.68-59,138.36

Finding the Fourth Proportional to 103,646.55, 155,220.68 and 59,138.36

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Solution

The fourth proportional to 103,646.55, 155,220.68 and 59,138.36 is: 88,565.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,646.55 : 155,220.68 = 59,138.36 : x
  2. Step 2: Convert to fraction form
    103,646.55/155,220.68 = 59,138.36/x
  3. Step 3: Cross multiply
    103,646.55x = 155,220.68 × 59,138.36
  4. Step 4: Simplify right side
    103,646.55x = 9,179,495,381.49
  5. Step 5: Solve for x
    x = 9,179,495,381.49/103,646.55
  6. Step 6: Final answer
    x = 88,565.37

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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.