Home / 111,116.66-153,341.40-60,129.39

Finding the Fourth Proportional to 111,116.66, 153,341.40 and 60,129.39

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Solution

The fourth proportional to 111,116.66, 153,341.40 and 60,129.39 is: 82,978.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,116.66 : 153,341.40 = 60,129.39 : x
  2. Step 2: Convert to fraction form
    111,116.66/153,341.40 = 60,129.39/x
  3. Step 3: Cross multiply
    111,116.66x = 153,341.40 × 60,129.39
  4. Step 4: Simplify right side
    111,116.66x = 9,220,324,843.75
  5. Step 5: Solve for x
    x = 9,220,324,843.75/111,116.66
  6. Step 6: Final answer
    x = 82,978.78

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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.