Home / 102,612.40-153,790.11-55,110.76

Finding the Fourth Proportional to 102,612.40, 153,790.11 and 55,110.76

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Solution

The fourth proportional to 102,612.40, 153,790.11 and 55,110.76 is: 82,597.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,612.40 : 153,790.11 = 55,110.76 : x
  2. Step 2: Convert to fraction form
    102,612.40/153,790.11 = 55,110.76/x
  3. Step 3: Cross multiply
    102,612.40x = 153,790.11 × 55,110.76
  4. Step 4: Simplify right side
    102,612.40x = 8,475,489,842.58
  5. Step 5: Solve for x
    x = 8,475,489,842.58/102,612.40
  6. Step 6: Final answer
    x = 82,597.13

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1.5x scale

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.