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Finding the Fourth Proportional to 124,601.32, 186,830.16 and 85,206.16

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Solution

The fourth proportional to 124,601.32, 186,830.16 and 85,206.16 is: 127,760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,601.32 : 186,830.16 = 85,206.16 : x
  2. Step 2: Convert to fraction form
    124,601.32/186,830.16 = 85,206.16/x
  3. Step 3: Cross multiply
    124,601.32x = 186,830.16 × 85,206.16
  4. Step 4: Simplify right side
    124,601.32x = 15,919,080,505.79
  5. Step 5: Solve for x
    x = 15,919,080,505.79/124,601.32
  6. Step 6: Final answer
    x = 127,760.13

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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.