Home / 95,869.10-143,803.65-86,537.90

Finding the Fourth Proportional to 95,869.10, 143,803.65 and 86,537.90

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Solution

The fourth proportional to 95,869.10, 143,803.65 and 86,537.90 is: 129,806.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,869.10 : 143,803.65 = 86,537.90 : x
  2. Step 2: Convert to fraction form
    95,869.10/143,803.65 = 86,537.90/x
  3. Step 3: Cross multiply
    95,869.10x = 143,803.65 × 86,537.90
  4. Step 4: Simplify right side
    95,869.10x = 12,444,465,883.34
  5. Step 5: Solve for x
    x = 12,444,465,883.34/95,869.10
  6. Step 6: Final answer
    x = 129,806.85

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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.