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Finding the Fourth Proportional to 157,687.32, 217,636.72 and 94,029.22

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Solution

The fourth proportional to 157,687.32, 217,636.72 and 94,029.22 is: 129,777.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,687.32 : 217,636.72 = 94,029.22 : x
  2. Step 2: Convert to fraction form
    157,687.32/217,636.72 = 94,029.22/x
  3. Step 3: Cross multiply
    157,687.32x = 217,636.72 × 94,029.22
  4. Step 4: Simplify right side
    157,687.32x = 20,464,211,024.96
  5. Step 5: Solve for x
    x = 20,464,211,024.96/157,687.32
  6. Step 6: Final answer
    x = 129,777.15

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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.