Home / 157,331.10-217,103.67-89,334.30

Finding the Fourth Proportional to 157,331.10, 217,103.67 and 89,334.30

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Solution

The fourth proportional to 157,331.10, 217,103.67 and 89,334.30 is: 123,273.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,331.10 : 217,103.67 = 89,334.30 : x
  2. Step 2: Convert to fraction form
    157,331.10/217,103.67 = 89,334.30/x
  3. Step 3: Cross multiply
    157,331.10x = 217,103.67 × 89,334.30
  4. Step 4: Simplify right side
    157,331.10x = 19,394,804,386.88
  5. Step 5: Solve for x
    x = 19,394,804,386.88/157,331.10
  6. Step 6: Final answer
    x = 123,273.81

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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.