Home / 102,421.60-141,347.28-59,983.36

Finding the Fourth Proportional to 102,421.60, 141,347.28 and 59,983.36

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Solution

The fourth proportional to 102,421.60, 141,347.28 and 59,983.36 is: 82,780.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,421.60 : 141,347.28 = 59,983.36 : x
  2. Step 2: Convert to fraction form
    102,421.60/141,347.28 = 59,983.36/x
  3. Step 3: Cross multiply
    102,421.60x = 141,347.28 × 59,983.36
  4. Step 4: Simplify right side
    102,421.60x = 8,478,484,781.26
  5. Step 5: Solve for x
    x = 8,478,484,781.26/102,421.60
  6. Step 6: Final answer
    x = 82,780.24

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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.