Home / 90,550.85-135,915.67-67,983.04

Finding the Fourth Proportional to 90,550.85, 135,915.67 and 67,983.04

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Solution

The fourth proportional to 90,550.85, 135,915.67 and 67,983.04 is: 102,041.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,550.85 : 135,915.67 = 67,983.04 : x
  2. Step 2: Convert to fraction form
    90,550.85/135,915.67 = 67,983.04/x
  3. Step 3: Cross multiply
    90,550.85x = 135,915.67 × 67,983.04
  4. Step 4: Simplify right side
    90,550.85x = 9,239,960,430.24
  5. Step 5: Solve for x
    x = 9,239,960,430.24/90,550.85
  6. Step 6: Final answer
    x = 102,041.68

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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.