Home / 111,510.40-153,877.44-61,209.04

Finding the Fourth Proportional to 111,510.40, 153,877.44 and 61,209.04

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Solution

The fourth proportional to 111,510.40, 153,877.44 and 61,209.04 is: 84,464.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,510.40 : 153,877.44 = 61,209.04 : x
  2. Step 2: Convert to fraction form
    111,510.40/153,877.44 = 61,209.04/x
  3. Step 3: Cross multiply
    111,510.40x = 153,877.44 × 61,209.04
  4. Step 4: Simplify right side
    111,510.40x = 9,418,690,380.06
  5. Step 5: Solve for x
    x = 9,418,690,380.06/111,510.40
  6. Step 6: Final answer
    x = 84,464.68

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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.