Home / 106,542.11-147,083.39-77,829.53

Finding the Fourth Proportional to 106,542.11, 147,083.39 and 77,829.53

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Solution

The fourth proportional to 106,542.11, 147,083.39 and 77,829.53 is: 107,445.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,542.11 : 147,083.39 = 77,829.53 : x
  2. Step 2: Convert to fraction form
    106,542.11/147,083.39 = 77,829.53/x
  3. Step 3: Cross multiply
    106,542.11x = 147,083.39 × 77,829.53
  4. Step 4: Simplify right side
    106,542.11x = 11,447,430,357.65
  5. Step 5: Solve for x
    x = 11,447,430,357.65/106,542.11
  6. Step 6: Final answer
    x = 107,445.13

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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.