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Finding the Fourth Proportional to 157,675.61, 217,559.05 and 100,294.04

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Solution

The fourth proportional to 157,675.61, 217,559.05 and 100,294.04 is: 138,384.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,675.61 : 217,559.05 = 100,294.04 : x
  2. Step 2: Convert to fraction form
    157,675.61/217,559.05 = 100,294.04/x
  3. Step 3: Cross multiply
    157,675.61x = 217,559.05 × 100,294.04
  4. Step 4: Simplify right side
    157,675.61x = 21,819,876,356.22
  5. Step 5: Solve for x
    x = 21,819,876,356.22/157,675.61
  6. Step 6: Final answer
    x = 138,384.60

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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.