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Finding the Fourth Proportional to 152,549.92, 210,518.31 and 85,481.92

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Solution

The fourth proportional to 152,549.92, 210,518.31 and 85,481.92 is: 117,964.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,549.92 : 210,518.31 = 85,481.92 : x
  2. Step 2: Convert to fraction form
    152,549.92/210,518.31 = 85,481.92/x
  3. Step 3: Cross multiply
    152,549.92x = 210,518.31 × 85,481.92
  4. Step 4: Simplify right side
    152,549.92x = 17,995,509,333.96
  5. Step 5: Solve for x
    x = 17,995,509,333.96/152,549.92
  6. Step 6: Final answer
    x = 117,964.72

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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.