Home / 90,168.39-124,356.87-67,560.48

Finding the Fourth Proportional to 90,168.39, 124,356.87 and 67,560.48

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Solution

The fourth proportional to 90,168.39, 124,356.87 and 67,560.48 is: 93,176.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,168.39 : 124,356.87 = 67,560.48 : x
  2. Step 2: Convert to fraction form
    90,168.39/124,356.87 = 67,560.48/x
  3. Step 3: Cross multiply
    90,168.39x = 124,356.87 × 67,560.48
  4. Step 4: Simplify right side
    90,168.39x = 8,401,609,828.50
  5. Step 5: Solve for x
    x = 8,401,609,828.50/90,168.39
  6. Step 6: Final answer
    x = 93,176.89

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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.