Home / 157,677.61-217,561.81-100,296.04

Finding the Fourth Proportional to 157,677.61, 217,561.81 and 100,296.04

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Solution

The fourth proportional to 157,677.61, 217,561.81 and 100,296.04 is: 138,387.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,677.61 : 217,561.81 = 100,296.04 : x
  2. Step 2: Convert to fraction form
    157,677.61/217,561.81 = 100,296.04/x
  3. Step 3: Cross multiply
    157,677.61x = 217,561.81 × 100,296.04
  4. Step 4: Simplify right side
    157,677.61x = 21,820,587,998.23
  5. Step 5: Solve for x
    x = 21,820,587,998.23/157,677.61
  6. Step 6: Final answer
    x = 138,387.36

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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.