Home / 90,153.72-124,539.39-82,073.88

Finding the Fourth Proportional to 90,153.72, 124,539.39 and 82,073.88

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Solution

The fourth proportional to 90,153.72, 124,539.39 and 82,073.88 is: 113,377.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,153.72 : 124,539.39 = 82,073.88 : x
  2. Step 2: Convert to fraction form
    90,153.72/124,539.39 = 82,073.88/x
  3. Step 3: Cross multiply
    90,153.72x = 124,539.39 × 82,073.88
  4. Step 4: Simplify right side
    90,153.72x = 10,221,430,950.13
  5. Step 5: Solve for x
    x = 10,221,430,950.13/90,153.72
  6. Step 6: Final answer
    x = 113,377.81

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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.