Home / 111,568.32-153,966.96-61,268.40

Finding the Fourth Proportional to 111,568.32, 153,966.96 and 61,268.40

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Solution

The fourth proportional to 111,568.32, 153,966.96 and 61,268.40 is: 84,551.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,568.32 : 153,966.96 = 61,268.40 : x
  2. Step 2: Convert to fraction form
    111,568.32/153,966.96 = 61,268.40/x
  3. Step 3: Cross multiply
    111,568.32x = 153,966.96 × 61,268.40
  4. Step 4: Simplify right side
    111,568.32x = 9,433,309,292.06
  5. Step 5: Solve for x
    x = 9,433,309,292.06/111,568.32
  6. Step 6: Final answer
    x = 84,551.86

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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.