Home / 126,443.03-174,530.61-78,060.20

Finding the Fourth Proportional to 126,443.03, 174,530.61 and 78,060.20

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Solution

The fourth proportional to 126,443.03, 174,530.61 and 78,060.20 is: 107,747.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,443.03 : 174,530.61 = 78,060.20 : x
  2. Step 2: Convert to fraction form
    126,443.03/174,530.61 = 78,060.20/x
  3. Step 3: Cross multiply
    126,443.03x = 174,530.61 × 78,060.20
  4. Step 4: Simplify right side
    126,443.03x = 13,623,893,450.07
  5. Step 5: Solve for x
    x = 13,623,893,450.07/126,443.03
  6. Step 6: Final answer
    x = 107,747.29

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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.