Home / 102,449.08-153,425.94-84,788.92

Finding the Fourth Proportional to 102,449.08, 153,425.94 and 84,788.92

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Solution

The fourth proportional to 102,449.08, 153,425.94 and 84,788.92 is: 126,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,449.08 : 153,425.94 = 84,788.92 : x
  2. Step 2: Convert to fraction form
    102,449.08/153,425.94 = 84,788.92/x
  3. Step 3: Cross multiply
    102,449.08x = 153,425.94 × 84,788.92
  4. Step 4: Simplify right side
    102,449.08x = 13,008,819,752.58
  5. Step 5: Solve for x
    x = 13,008,819,752.58/102,449.08
  6. Step 6: Final answer
    x = 126,978.40

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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.