Home / 126,985.80-175,228.02-70,395.96

Finding the Fourth Proportional to 126,985.80, 175,228.02 and 70,395.96

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Solution

The fourth proportional to 126,985.80, 175,228.02 and 70,395.96 is: 97,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,985.80 : 175,228.02 = 70,395.96 : x
  2. Step 2: Convert to fraction form
    126,985.80/175,228.02 = 70,395.96/x
  3. Step 3: Cross multiply
    126,985.80x = 175,228.02 × 70,395.96
  4. Step 4: Simplify right side
    126,985.80x = 12,335,344,686.80
  5. Step 5: Solve for x
    x = 12,335,344,686.80/126,985.80
  6. Step 6: Final answer
    x = 97,139.56

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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.