Home / 126,985.19-175,204.10-100,044.07

Finding the Fourth Proportional to 126,985.19, 175,204.10 and 100,044.07

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Solution

The fourth proportional to 126,985.19, 175,204.10 and 100,044.07 is: 138,032.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,985.19 : 175,204.10 = 100,044.07 : x
  2. Step 2: Convert to fraction form
    126,985.19/175,204.10 = 100,044.07/x
  3. Step 3: Cross multiply
    126,985.19x = 175,204.10 × 100,044.07
  4. Step 4: Simplify right side
    126,985.19x = 17,528,130,744.47
  5. Step 5: Solve for x
    x = 17,528,130,744.47/126,985.19
  6. Step 6: Final answer
    x = 138,032.87

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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.