Home / 132,987.30-199,314.63-66,446.16

Finding the Fourth Proportional to 132,987.30, 199,314.63 and 66,446.16

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Solution

The fourth proportional to 132,987.30, 199,314.63 and 66,446.16 is: 99,586.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,987.30 : 199,314.63 = 66,446.16 : x
  2. Step 2: Convert to fraction form
    132,987.30/199,314.63 = 66,446.16/x
  3. Step 3: Cross multiply
    132,987.30x = 199,314.63 × 66,446.16
  4. Step 4: Simplify right side
    132,987.30x = 13,243,691,795.32
  5. Step 5: Solve for x
    x = 13,243,691,795.32/132,987.30
  6. Step 6: Final answer
    x = 99,586.14

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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.