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Finding the Fourth Proportional to 105,614.91, 158,754.52 and 91,747.62

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Solution

The fourth proportional to 105,614.91, 158,754.52 and 91,747.62 is: 137,909.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,614.91 : 158,754.52 = 91,747.62 : x
  2. Step 2: Convert to fraction form
    105,614.91/158,754.52 = 91,747.62/x
  3. Step 3: Cross multiply
    105,614.91x = 158,754.52 × 91,747.62
  4. Step 4: Simplify right side
    105,614.91x = 14,565,349,374.24
  5. Step 5: Solve for x
    x = 14,565,349,374.24/105,614.91
  6. Step 6: Final answer
    x = 137,909.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.