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Finding the Fourth Proportional to 157,666.33, 217,816.49 and 103,347.44

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Solution

The fourth proportional to 157,666.33, 217,816.49 and 103,347.44 is: 142,774.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,666.33 : 217,816.49 = 103,347.44 : x
  2. Step 2: Convert to fraction form
    157,666.33/217,816.49 = 103,347.44/x
  3. Step 3: Cross multiply
    157,666.33x = 217,816.49 × 103,347.44
  4. Step 4: Simplify right side
    157,666.33x = 22,510,775,800.57
  5. Step 5: Solve for x
    x = 22,510,775,800.57/157,666.33
  6. Step 6: Final answer
    x = 142,774.78

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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.