Home / 121,079.12-181,618.36-57,707.16

Finding the Fourth Proportional to 121,079.12, 181,618.36 and 57,707.16

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Solution

The fourth proportional to 121,079.12, 181,618.36 and 57,707.16 is: 86,560.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,079.12 : 181,618.36 = 57,707.16 : x
  2. Step 2: Convert to fraction form
    121,079.12/181,618.36 = 57,707.16/x
  3. Step 3: Cross multiply
    121,079.12x = 181,618.36 × 57,707.16
  4. Step 4: Simplify right side
    121,079.12x = 10,480,679,759.46
  5. Step 5: Solve for x
    x = 10,480,679,759.46/121,079.12
  6. Step 6: Final answer
    x = 86,560.59

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1.5x scale

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.