Home / 86,148.30-118,857.20-52,145.90

Finding the Fourth Proportional to 86,148.30, 118,857.20 and 52,145.90

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Solution

The fourth proportional to 86,148.30, 118,857.20 and 52,145.90 is: 71,944.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,148.30 : 118,857.20 = 52,145.90 : x
  2. Step 2: Convert to fraction form
    86,148.30/118,857.20 = 52,145.90/x
  3. Step 3: Cross multiply
    86,148.30x = 118,857.20 × 52,145.90
  4. Step 4: Simplify right side
    86,148.30x = 6,197,914,810.46
  5. Step 5: Solve for x
    x = 6,197,914,810.46/86,148.30
  6. Step 6: Final answer
    x = 71,944.71

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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.