Home / 157,541.89-217,407.80-85,921.91

Finding the Fourth Proportional to 157,541.89, 217,407.80 and 85,921.91

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Solution

The fourth proportional to 157,541.89, 217,407.80 and 85,921.91 is: 118,572.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,541.89 : 217,407.80 = 85,921.91 : x
  2. Step 2: Convert to fraction form
    157,541.89/217,407.80 = 85,921.91/x
  3. Step 3: Cross multiply
    157,541.89x = 217,407.80 × 85,921.91
  4. Step 4: Simplify right side
    157,541.89x = 18,680,093,424.90
  5. Step 5: Solve for x
    x = 18,680,093,424.90/157,541.89
  6. Step 6: Final answer
    x = 118,572.23

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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.