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Finding the Fourth Proportional to 157,451, 217,359.95 and 109,089.60

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Solution

The fourth proportional to 157,451, 217,359.95 and 109,089.60 is: 150,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,451 : 217,359.95 = 109,089.60 : x
  2. Step 2: Convert to fraction form
    157,451/217,359.95 = 109,089.60/x
  3. Step 3: Cross multiply
    157,451x = 217,359.95 × 109,089.60
  4. Step 4: Simplify right side
    157,451x = 23,711,708,914.72
  5. Step 5: Solve for x
    x = 23,711,708,914.72/157,451
  6. Step 6: Final answer
    x = 150,597.39

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1.5x scale

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.