Home / 90,077.50-135,115.17-84,597.06

Finding the Fourth Proportional to 90,077.50, 135,115.17 and 84,597.06

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Solution

The fourth proportional to 90,077.50, 135,115.17 and 84,597.06 is: 126,894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,077.50 : 135,115.17 = 84,597.06 : x
  2. Step 2: Convert to fraction form
    90,077.50/135,115.17 = 84,597.06/x
  3. Step 3: Cross multiply
    90,077.50x = 135,115.17 × 84,597.06
  4. Step 4: Simplify right side
    90,077.50x = 11,430,346,143.40
  5. Step 5: Solve for x
    x = 11,430,346,143.40/90,077.50
  6. Step 6: Final answer
    x = 126,894.58

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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.