Home / 90,697.03-135,359.68-88,335.07

Finding the Fourth Proportional to 90,697.03, 135,359.68 and 88,335.07

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Solution

The fourth proportional to 90,697.03, 135,359.68 and 88,335.07 is: 131,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,697.03 : 135,359.68 = 88,335.07 : x
  2. Step 2: Convert to fraction form
    90,697.03/135,359.68 = 88,335.07/x
  3. Step 3: Cross multiply
    90,697.03x = 135,359.68 × 88,335.07
  4. Step 4: Simplify right side
    90,697.03x = 11,957,006,807.98
  5. Step 5: Solve for x
    x = 11,957,006,807.98/90,697.03
  6. Step 6: Final answer
    x = 131,834.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.