Home / 123,276.06-170,120.16-66,686.22

Finding the Fourth Proportional to 123,276.06, 170,120.16 and 66,686.22

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Solution

The fourth proportional to 123,276.06, 170,120.16 and 66,686.22 is: 92,026.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,276.06 : 170,120.16 = 66,686.22 : x
  2. Step 2: Convert to fraction form
    123,276.06/170,120.16 = 66,686.22/x
  3. Step 3: Cross multiply
    123,276.06x = 170,120.16 × 66,686.22
  4. Step 4: Simplify right side
    123,276.06x = 11,344,670,416.20
  5. Step 5: Solve for x
    x = 11,344,670,416.20/123,276.06
  6. Step 6: Final answer
    x = 92,026.55

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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.