Home / 109,471.29-151,072.05-64,138.42

Finding the Fourth Proportional to 109,471.29, 151,072.05 and 64,138.42

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Solution

The fourth proportional to 109,471.29, 151,072.05 and 64,138.42 is: 88,512.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,471.29 : 151,072.05 = 64,138.42 : x
  2. Step 2: Convert to fraction form
    109,471.29/151,072.05 = 64,138.42/x
  3. Step 3: Cross multiply
    109,471.29x = 151,072.05 × 64,138.42
  4. Step 4: Simplify right side
    109,471.29x = 9,689,522,593.16
  5. Step 5: Solve for x
    x = 9,689,522,593.16/109,471.29
  6. Step 6: Final answer
    x = 88,512.00

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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.