Home / 123,257.96-170,095.36-66,669.20

Finding the Fourth Proportional to 123,257.96, 170,095.36 and 66,669.20

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Solution

The fourth proportional to 123,257.96, 170,095.36 and 66,669.20 is: 92,003.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,257.96 : 170,095.36 = 66,669.20 : x
  2. Step 2: Convert to fraction form
    123,257.96/170,095.36 = 66,669.20/x
  3. Step 3: Cross multiply
    123,257.96x = 170,095.36 × 66,669.20
  4. Step 4: Simplify right side
    123,257.96x = 11,340,121,574.91
  5. Step 5: Solve for x
    x = 11,340,121,574.91/123,257.96
  6. Step 6: Final answer
    x = 92,003.16

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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.