Home / 123,028.95-169,779.93-66,440.34

Finding the Fourth Proportional to 123,028.95, 169,779.93 and 66,440.34

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Solution

The fourth proportional to 123,028.95, 169,779.93 and 66,440.34 is: 91,687.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,028.95 : 169,779.93 = 66,440.34 : x
  2. Step 2: Convert to fraction form
    123,028.95/169,779.93 = 66,440.34/x
  3. Step 3: Cross multiply
    123,028.95x = 169,779.93 × 66,440.34
  4. Step 4: Simplify right side
    123,028.95x = 11,280,236,274.38
  5. Step 5: Solve for x
    x = 11,280,236,274.38/123,028.95
  6. Step 6: Final answer
    x = 91,687.66

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1.5x scale

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.