Home / 123,028.64-169,779.53-66,440.02

Finding the Fourth Proportional to 123,028.64, 169,779.53 and 66,440.02

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Solution

The fourth proportional to 123,028.64, 169,779.53 and 66,440.02 is: 91,687.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,028.64 : 169,779.53 = 66,440.02 : x
  2. Step 2: Convert to fraction form
    123,028.64/169,779.53 = 66,440.02/x
  3. Step 3: Cross multiply
    123,028.64x = 169,779.53 × 66,440.02
  4. Step 4: Simplify right side
    123,028.64x = 11,280,154,861.29
  5. Step 5: Solve for x
    x = 11,280,154,861.29/123,028.64
  6. Step 6: Final answer
    x = 91,687.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.