Home / 103,614.14-142,987.73-61,175.40

Finding the Fourth Proportional to 103,614.14, 142,987.73 and 61,175.40

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Solution

The fourth proportional to 103,614.14, 142,987.73 and 61,175.40 is: 84,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,614.14 : 142,987.73 = 61,175.40 : x
  2. Step 2: Convert to fraction form
    103,614.14/142,987.73 = 61,175.40/x
  3. Step 3: Cross multiply
    103,614.14x = 142,987.73 × 61,175.40
  4. Step 4: Simplify right side
    103,614.14x = 8,747,331,271.97
  5. Step 5: Solve for x
    x = 8,747,331,271.97/103,614.14
  6. Step 6: Final answer
    x = 84,422.18

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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.