Home / 123,288,138.41-170,117,638.22-73,748,982.29

Finding the Fourth Proportional to 123,288,138.41, 170,117,638.22 and 73,748,982.29

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Solution

The fourth proportional to 123,288,138.41, 170,117,638.22 and 73,748,982.29 is: 101,761,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,288,138.41 : 170,117,638.22 = 73,748,982.29 : x
  2. Step 2: Convert to fraction form
    123,288,138.41/170,117,638.22 = 73,748,982.29/x
  3. Step 3: Cross multiply
    123,288,138.41x = 170,117,638.22 × 73,748,982.29
  4. Step 4: Simplify right side
    123,288,138.41x = 12,546,002,687,637,190
  5. Step 5: Solve for x
    x = 12,546,002,687,637,190/123,288,138.41
  6. Step 6: Final answer
    x = 101,761,636.20

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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.