Home / 153,986.20-212,565.78-93,576.28

Finding the Fourth Proportional to 153,986.20, 212,565.78 and 93,576.28

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Solution

The fourth proportional to 153,986.20, 212,565.78 and 93,576.28 is: 129,174.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,986.20 : 212,565.78 = 93,576.28 : x
  2. Step 2: Convert to fraction form
    153,986.20/212,565.78 = 93,576.28/x
  3. Step 3: Cross multiply
    153,986.20x = 212,565.78 × 93,576.28
  4. Step 4: Simplify right side
    153,986.20x = 19,891,114,947.70
  5. Step 5: Solve for x
    x = 19,891,114,947.70/153,986.20
  6. Step 6: Final answer
    x = 129,174.66

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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.