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Finding the Fourth Proportional to 109,234.60, 150,744.84 and 61,478.74

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Solution

The fourth proportional to 109,234.60, 150,744.84 and 61,478.74 is: 84,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,234.60 : 150,744.84 = 61,478.74 : x
  2. Step 2: Convert to fraction form
    109,234.60/150,744.84 = 61,478.74/x
  3. Step 3: Cross multiply
    109,234.60x = 150,744.84 × 61,478.74
  4. Step 4: Simplify right side
    109,234.60x = 9,267,602,824.70
  5. Step 5: Solve for x
    x = 9,267,602,824.70/109,234.60
  6. Step 6: Final answer
    x = 84,841.28

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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.