Home / 157,645.80-217,551.20-112,402.60

Finding the Fourth Proportional to 157,645.80, 217,551.20 and 112,402.60

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Solution

The fourth proportional to 157,645.80, 217,551.20 and 112,402.60 is: 155,115.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,645.80 : 217,551.20 = 112,402.60 : x
  2. Step 2: Convert to fraction form
    157,645.80/217,551.20 = 112,402.60/x
  3. Step 3: Cross multiply
    157,645.80x = 217,551.20 × 112,402.60
  4. Step 4: Simplify right side
    157,645.80x = 24,453,320,513.12
  5. Step 5: Solve for x
    x = 24,453,320,513.12/157,645.80
  6. Step 6: Final answer
    x = 155,115.59

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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.