Home / 111,877.56-154,394.68-64,139.92

Finding the Fourth Proportional to 111,877.56, 154,394.68 and 64,139.92

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Solution

The fourth proportional to 111,877.56, 154,394.68 and 64,139.92 is: 88,515.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,877.56 : 154,394.68 = 64,139.92 : x
  2. Step 2: Convert to fraction form
    111,877.56/154,394.68 = 64,139.92/x
  3. Step 3: Cross multiply
    111,877.56x = 154,394.68 × 64,139.92
  4. Step 4: Simplify right side
    111,877.56x = 9,902,862,423.63
  5. Step 5: Solve for x
    x = 9,902,862,423.63/111,877.56
  6. Step 6: Final answer
    x = 88,515.18

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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.