Home / 103,239.16-142,470.09-60,248.21

Finding the Fourth Proportional to 103,239.16, 142,470.09 and 60,248.21

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Solution

The fourth proportional to 103,239.16, 142,470.09 and 60,248.21 is: 83,142.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,239.16 : 142,470.09 = 60,248.21 : x
  2. Step 2: Convert to fraction form
    103,239.16/142,470.09 = 60,248.21/x
  3. Step 3: Cross multiply
    103,239.16x = 142,470.09 × 60,248.21
  4. Step 4: Simplify right side
    103,239.16x = 8,583,567,188.69
  5. Step 5: Solve for x
    x = 8,583,567,188.69/103,239.16
  6. Step 6: Final answer
    x = 83,142.55

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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.