Home / 126,175.40-174,116.16-72,422.58

Finding the Fourth Proportional to 126,175.40, 174,116.16 and 72,422.58

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Solution

The fourth proportional to 126,175.40, 174,116.16 and 72,422.58 is: 99,939.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,175.40 : 174,116.16 = 72,422.58 : x
  2. Step 2: Convert to fraction form
    126,175.40/174,116.16 = 72,422.58/x
  3. Step 3: Cross multiply
    126,175.40x = 174,116.16 × 72,422.58
  4. Step 4: Simplify right side
    126,175.40x = 12,609,941,526.89
  5. Step 5: Solve for x
    x = 12,609,941,526.89/126,175.40
  6. Step 6: Final answer
    x = 99,939.78

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1.5x scale

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.