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Finding the Fourth Proportional to 103,614.40, 154,665.14 and 88,917.76

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Solution

The fourth proportional to 103,614.40, 154,665.14 and 88,917.76 is: 132,727.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.40 : 154,665.14 = 88,917.76 : x
  2. Step 2: Convert to fraction form
    103,614.40/154,665.14 = 88,917.76/x
  3. Step 3: Cross multiply
    103,614.40x = 154,665.14 × 88,917.76
  4. Step 4: Simplify right side
    103,614.40x = 13,752,477,798.89
  5. Step 5: Solve for x
    x = 13,752,477,798.89/103,614.40
  6. Step 6: Final answer
    x = 132,727.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.