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Finding the Fourth Proportional to 143,792.10, 215,688.15 and 101,801.70

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Solution

The fourth proportional to 143,792.10, 215,688.15 and 101,801.70 is: 152,702.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,792.10 : 215,688.15 = 101,801.70 : x
  2. Step 2: Convert to fraction form
    143,792.10/215,688.15 = 101,801.70/x
  3. Step 3: Cross multiply
    143,792.10x = 215,688.15 × 101,801.70
  4. Step 4: Simplify right side
    143,792.10x = 21,957,420,339.86
  5. Step 5: Solve for x
    x = 21,957,420,339.86/143,792.10
  6. Step 6: Final answer
    x = 152,702.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.