Home / 126,705.15-174,825.20-75,710.25

Finding the Fourth Proportional to 126,705.15, 174,825.20 and 75,710.25

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Solution

The fourth proportional to 126,705.15, 174,825.20 and 75,710.25 is: 104,463.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,705.15 : 174,825.20 = 75,710.25 : x
  2. Step 2: Convert to fraction form
    126,705.15/174,825.20 = 75,710.25/x
  3. Step 3: Cross multiply
    126,705.15x = 174,825.20 × 75,710.25
  4. Step 4: Simplify right side
    126,705.15x = 13,236,059,219.75
  5. Step 5: Solve for x
    x = 13,236,059,219.75/126,705.15
  6. Step 6: Final answer
    x = 104,463.47

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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.