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Finding the Fourth Proportional to 105,398.16, 158,159.48 and 38,884.74

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Solution

The fourth proportional to 105,398.16, 158,159.48 and 38,884.74 is: 58,350.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,398.16 : 158,159.48 = 38,884.74 : x
  2. Step 2: Convert to fraction form
    105,398.16/158,159.48 = 38,884.74/x
  3. Step 3: Cross multiply
    105,398.16x = 158,159.48 × 38,884.74
  4. Step 4: Simplify right side
    105,398.16x = 6,149,990,063.91
  5. Step 5: Solve for x
    x = 6,149,990,063.91/105,398.16
  6. Step 6: Final answer
    x = 58,350.07

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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.