Home / 108,031.40-161,970.30-41,445.80

Finding the Fourth Proportional to 108,031.40, 161,970.30 and 41,445.80

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Solution

The fourth proportional to 108,031.40, 161,970.30 and 41,445.80 is: 62,139.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,031.40 : 161,970.30 = 41,445.80 : x
  2. Step 2: Convert to fraction form
    108,031.40/161,970.30 = 41,445.80/x
  3. Step 3: Cross multiply
    108,031.40x = 161,970.30 × 41,445.80
  4. Step 4: Simplify right side
    108,031.40x = 6,712,988,659.74
  5. Step 5: Solve for x
    x = 6,712,988,659.74/108,031.40
  6. Step 6: Final answer
    x = 62,139.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.