Home / 102,788.28-141,840-62,496.45

Finding the Fourth Proportional to 102,788.28, 141,840 and 62,496.45

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Solution

The fourth proportional to 102,788.28, 141,840 and 62,496.45 is: 86,240.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,788.28 : 141,840 = 62,496.45 : x
  2. Step 2: Convert to fraction form
    102,788.28/141,840 = 62,496.45/x
  3. Step 3: Cross multiply
    102,788.28x = 141,840 × 62,496.45
  4. Step 4: Simplify right side
    102,788.28x = 8,864,496,468
  5. Step 5: Solve for x
    x = 8,864,496,468/102,788.28
  6. Step 6: Final answer
    x = 86,240.34

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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.