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Finding the Fourth Proportional to 109,974.79, 151,757.58 and 64,654.71

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Solution

The fourth proportional to 109,974.79, 151,757.58 and 64,654.71 is: 89,219.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,974.79 : 151,757.58 = 64,654.71 : x
  2. Step 2: Convert to fraction form
    109,974.79/151,757.58 = 64,654.71/x
  3. Step 3: Cross multiply
    109,974.79x = 151,757.58 × 64,654.71
  4. Step 4: Simplify right side
    109,974.79x = 9,811,842,325.20
  5. Step 5: Solve for x
    x = 9,811,842,325.20/109,974.79
  6. Step 6: Final answer
    x = 89,219.01

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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.