Home / 111,535.29-153,947.12-63,803.61

Finding the Fourth Proportional to 111,535.29, 153,947.12 and 63,803.61

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Solution

The fourth proportional to 111,535.29, 153,947.12 and 63,803.61 is: 88,065.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,535.29 : 153,947.12 = 63,803.61 : x
  2. Step 2: Convert to fraction form
    111,535.29/153,947.12 = 63,803.61/x
  3. Step 3: Cross multiply
    111,535.29x = 153,947.12 × 63,803.61
  4. Step 4: Simplify right side
    111,535.29x = 9,822,381,686.09
  5. Step 5: Solve for x
    x = 9,822,381,686.09/111,535.29
  6. Step 6: Final answer
    x = 88,065.24

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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.