Home / 125,044.13-172,513.80-82,047.36

Finding the Fourth Proportional to 125,044.13, 172,513.80 and 82,047.36

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Solution

The fourth proportional to 125,044.13, 172,513.80 and 82,047.36 is: 113,194.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,044.13 : 172,513.80 = 82,047.36 : x
  2. Step 2: Convert to fraction form
    125,044.13/172,513.80 = 82,047.36/x
  3. Step 3: Cross multiply
    125,044.13x = 172,513.80 × 82,047.36
  4. Step 4: Simplify right side
    125,044.13x = 14,154,301,853.57
  5. Step 5: Solve for x
    x = 14,154,301,853.57/125,044.13
  6. Step 6: Final answer
    x = 113,194.45

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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.