Home / 90,700.03-135,364.15-88,338.07

Finding the Fourth Proportional to 90,700.03, 135,364.15 and 88,338.07

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Solution

The fourth proportional to 90,700.03, 135,364.15 and 88,338.07 is: 131,839.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,700.03 : 135,364.15 = 88,338.07 : x
  2. Step 2: Convert to fraction form
    90,700.03/135,364.15 = 88,338.07/x
  3. Step 3: Cross multiply
    90,700.03x = 135,364.15 × 88,338.07
  4. Step 4: Simplify right side
    90,700.03x = 11,957,807,758.19
  5. Step 5: Solve for x
    x = 11,957,807,758.19/90,700.03
  6. Step 6: Final answer
    x = 131,839.07

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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.