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Finding the Fourth Proportional to 181,250.71, 250,125.85 and 100,685.72

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Solution

The fourth proportional to 181,250.71, 250,125.85 and 100,685.72 is: 138,946.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,250.71 : 250,125.85 = 100,685.72 : x
  2. Step 2: Convert to fraction form
    181,250.71/250,125.85 = 100,685.72/x
  3. Step 3: Cross multiply
    181,250.71x = 250,125.85 × 100,685.72
  4. Step 4: Simplify right side
    181,250.71x = 25,184,101,671.46
  5. Step 5: Solve for x
    x = 25,184,101,671.46/181,250.71
  6. Step 6: Final answer
    x = 138,946.23

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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.