Home / 111,988.90-154,538.85-69,546.52

Finding the Fourth Proportional to 111,988.90, 154,538.85 and 69,546.52

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Solution

The fourth proportional to 111,988.90, 154,538.85 and 69,546.52 is: 95,970.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,988.90 : 154,538.85 = 69,546.52 : x
  2. Step 2: Convert to fraction form
    111,988.90/154,538.85 = 69,546.52/x
  3. Step 3: Cross multiply
    111,988.90x = 154,538.85 × 69,546.52
  4. Step 4: Simplify right side
    111,988.90x = 10,747,639,222.30
  5. Step 5: Solve for x
    x = 10,747,639,222.30/111,988.90
  6. Step 6: Final answer
    x = 95,970.58

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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.