Home / 106,505.28-146,972.40-61,151.40

Finding the Fourth Proportional to 106,505.28, 146,972.40 and 61,151.40

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Solution

The fourth proportional to 106,505.28, 146,972.40 and 61,151.40 is: 84,386.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,505.28 : 146,972.40 = 61,151.40 : x
  2. Step 2: Convert to fraction form
    106,505.28/146,972.40 = 61,151.40/x
  3. Step 3: Cross multiply
    106,505.28x = 146,972.40 × 61,151.40
  4. Step 4: Simplify right side
    106,505.28x = 8,987,568,021.36
  5. Step 5: Solve for x
    x = 8,987,568,021.36/106,505.28
  6. Step 6: Final answer
    x = 84,386.13

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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.