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Finding the Fourth Proportional to 115,585.58, 159,472.40 and 64,591.43

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Solution

The fourth proportional to 115,585.58, 159,472.40 and 64,591.43 is: 89,116.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,585.58 : 159,472.40 = 64,591.43 : x
  2. Step 2: Convert to fraction form
    115,585.58/159,472.40 = 64,591.43/x
  3. Step 3: Cross multiply
    115,585.58x = 159,472.40 × 64,591.43
  4. Step 4: Simplify right side
    115,585.58x = 10,300,549,241.21
  5. Step 5: Solve for x
    x = 10,300,549,241.21/115,585.58
  6. Step 6: Final answer
    x = 89,116.21

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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.