Home / 99,538.20-149,307.30-32,988.60

Finding the Fourth Proportional to 99,538.20, 149,307.30 and 32,988.60

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Solution

The fourth proportional to 99,538.20, 149,307.30 and 32,988.60 is: 49,482.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,538.20 : 149,307.30 = 32,988.60 : x
  2. Step 2: Convert to fraction form
    99,538.20/149,307.30 = 32,988.60/x
  3. Step 3: Cross multiply
    99,538.20x = 149,307.30 × 32,988.60
  4. Step 4: Simplify right side
    99,538.20x = 4,925,438,796.78
  5. Step 5: Solve for x
    x = 4,925,438,796.78/99,538.20
  6. Step 6: Final answer
    x = 49,482.90

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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.