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Finding the Fourth Proportional to 181,242.18, 250,110.72 and 100,666.08

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Solution

The fourth proportional to 181,242.18, 250,110.72 and 100,666.08 is: 138,917.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,242.18 : 250,110.72 = 100,666.08 : x
  2. Step 2: Convert to fraction form
    181,242.18/250,110.72 = 100,666.08/x
  3. Step 3: Cross multiply
    181,242.18x = 250,110.72 × 100,666.08
  4. Step 4: Simplify right side
    181,242.18x = 25,177,665,748.38
  5. Step 5: Solve for x
    x = 25,177,665,748.38/181,242.18
  6. Step 6: Final answer
    x = 138,917.25

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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.