Home / 157,347.56-217,139.64-85,727.57

Finding the Fourth Proportional to 157,347.56, 217,139.64 and 85,727.57

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Solution

The fourth proportional to 157,347.56, 217,139.64 and 85,727.57 is: 118,304.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,347.56 : 217,139.64 = 85,727.57 : x
  2. Step 2: Convert to fraction form
    157,347.56/217,139.64 = 85,727.57/x
  3. Step 3: Cross multiply
    157,347.56x = 217,139.64 × 85,727.57
  4. Step 4: Simplify right side
    157,347.56x = 18,614,852,280.70
  5. Step 5: Solve for x
    x = 18,614,852,280.70/157,347.56
  6. Step 6: Final answer
    x = 118,304.04

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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.