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Finding the Fourth Proportional to 159,313.71, 219,827.18 and 91,318.17

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Solution

The fourth proportional to 159,313.71, 219,827.18 and 91,318.17 is: 126,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,313.71 : 219,827.18 = 91,318.17 : x
  2. Step 2: Convert to fraction form
    159,313.71/219,827.18 = 91,318.17/x
  3. Step 3: Cross multiply
    159,313.71x = 219,827.18 × 91,318.17
  4. Step 4: Simplify right side
    159,313.71x = 20,074,215,793.86
  5. Step 5: Solve for x
    x = 20,074,215,793.86/159,313.71
  6. Step 6: Final answer
    x = 126,004.32

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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.