Home / 123,542.20-185,313.30-83,625.40

Finding the Fourth Proportional to 123,542.20, 185,313.30 and 83,625.40

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Solution

The fourth proportional to 123,542.20, 185,313.30 and 83,625.40 is: 125,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,542.20 : 185,313.30 = 83,625.40 : x
  2. Step 2: Convert to fraction form
    123,542.20/185,313.30 = 83,625.40/x
  3. Step 3: Cross multiply
    123,542.20x = 185,313.30 × 83,625.40
  4. Step 4: Simplify right side
    123,542.20x = 15,496,898,837.82
  5. Step 5: Solve for x
    x = 15,496,898,837.82/123,542.20
  6. Step 6: Final answer
    x = 125,438.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.