Home / 153,826.38-212,280.45-84,915.89

Finding the Fourth Proportional to 153,826.38, 212,280.45 and 84,915.89

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Solution

The fourth proportional to 153,826.38, 212,280.45 and 84,915.89 is: 117,183.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,826.38 : 212,280.45 = 84,915.89 : x
  2. Step 2: Convert to fraction form
    153,826.38/212,280.45 = 84,915.89/x
  3. Step 3: Cross multiply
    153,826.38x = 212,280.45 × 84,915.89
  4. Step 4: Simplify right side
    153,826.38x = 18,025,982,279.95
  5. Step 5: Solve for x
    x = 18,025,982,279.95/153,826.38
  6. Step 6: Final answer
    x = 117,183.95

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1.5x scale

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.