Home / 157,310.56-217,083.76-85,689.44

Finding the Fourth Proportional to 157,310.56, 217,083.76 and 85,689.44

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Solution

The fourth proportional to 157,310.56, 217,083.76 and 85,689.44 is: 118,248.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,310.56 : 217,083.76 = 85,689.44 : x
  2. Step 2: Convert to fraction form
    157,310.56/217,083.76 = 85,689.44/x
  3. Step 3: Cross multiply
    157,310.56x = 217,083.76 × 85,689.44
  4. Step 4: Simplify right side
    157,310.56x = 18,601,785,827.49
  5. Step 5: Solve for x
    x = 18,601,785,827.49/157,310.56
  6. Step 6: Final answer
    x = 118,248.81

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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.