Home / 157,542.04-217,407.06-85,921.72

Finding the Fourth Proportional to 157,542.04, 217,407.06 and 85,921.72

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Solution

The fourth proportional to 157,542.04, 217,407.06 and 85,921.72 is: 118,571.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,542.04 : 217,407.06 = 85,921.72 : x
  2. Step 2: Convert to fraction form
    157,542.04/217,407.06 = 85,921.72/x
  3. Step 3: Cross multiply
    157,542.04x = 217,407.06 × 85,921.72
  4. Step 4: Simplify right side
    157,542.04x = 18,679,988,535.34
  5. Step 5: Solve for x
    x = 18,679,988,535.34/157,542.04
  6. Step 6: Final answer
    x = 118,571.45

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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.