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Finding the Fourth Proportional to 132,990.30, 199,319.10 and 66,449.10

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Solution

The fourth proportional to 132,990.30, 199,319.10 and 66,449.10 is: 99,590.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,990.30 : 199,319.10 = 66,449.10 : x
  2. Step 2: Convert to fraction form
    132,990.30/199,319.10 = 66,449.10/x
  3. Step 3: Cross multiply
    132,990.30x = 199,319.10 × 66,449.10
  4. Step 4: Simplify right side
    132,990.30x = 13,244,574,807.81
  5. Step 5: Solve for x
    x = 13,244,574,807.81/132,990.30
  6. Step 6: Final answer
    x = 99,590.53

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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.