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Finding the Fourth Proportional to 157,080.75, 216,770.22 and 85,460.55

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Solution

The fourth proportional to 157,080.75, 216,770.22 and 85,460.55 is: 117,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,080.75 : 216,770.22 = 85,460.55 : x
  2. Step 2: Convert to fraction form
    157,080.75/216,770.22 = 85,460.55/x
  3. Step 3: Cross multiply
    157,080.75x = 216,770.22 × 85,460.55
  4. Step 4: Simplify right side
    157,080.75x = 18,525,302,224.82
  5. Step 5: Solve for x
    x = 18,525,302,224.82/157,080.75
  6. Step 6: Final answer
    x = 117,934.90

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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.