Home / 143,358.09-215,060.40-47,266.61

Finding the Fourth Proportional to 143,358.09, 215,060.40 and 47,266.61

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Solution

The fourth proportional to 143,358.09, 215,060.40 and 47,266.61 is: 70,907.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,358.09 : 215,060.40 = 47,266.61 : x
  2. Step 2: Convert to fraction form
    143,358.09/215,060.40 = 47,266.61/x
  3. Step 3: Cross multiply
    143,358.09x = 215,060.40 × 47,266.61
  4. Step 4: Simplify right side
    143,358.09x = 10,165,175,397.43
  5. Step 5: Solve for x
    x = 10,165,175,397.43/143,358.09
  6. Step 6: Final answer
    x = 70,907.58

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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.