Home / 90,711.04-135,380.54-88,349.08

Finding the Fourth Proportional to 90,711.04, 135,380.54 and 88,349.08

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Solution

The fourth proportional to 90,711.04, 135,380.54 and 88,349.08 is: 131,855.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,711.04 : 135,380.54 = 88,349.08 : x
  2. Step 2: Convert to fraction form
    90,711.04/135,380.54 = 88,349.08/x
  3. Step 3: Cross multiply
    90,711.04x = 135,380.54 × 88,349.08
  4. Step 4: Simplify right side
    90,711.04x = 11,960,746,158.90
  5. Step 5: Solve for x
    x = 11,960,746,158.90/90,711.04
  6. Step 6: Final answer
    x = 131,855.46

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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.