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Finding the Fourth Proportional to 143,323.54, 215,071.74 and 49,894.90

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Solution

The fourth proportional to 143,323.54, 215,071.74 and 49,894.90 is: 74,872.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,323.54 : 215,071.74 = 49,894.90 : x
  2. Step 2: Convert to fraction form
    143,323.54/215,071.74 = 49,894.90/x
  3. Step 3: Cross multiply
    143,323.54x = 215,071.74 × 49,894.90
  4. Step 4: Simplify right side
    143,323.54x = 10,730,982,960.13
  5. Step 5: Solve for x
    x = 10,730,982,960.13/143,323.54
  6. Step 6: Final answer
    x = 74,872.44

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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.