Home / 126,989.80-175,233.54-70,399.96

Finding the Fourth Proportional to 126,989.80, 175,233.54 and 70,399.96

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Solution

The fourth proportional to 126,989.80, 175,233.54 and 70,399.96 is: 97,145.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,989.80 : 175,233.54 = 70,399.96 : x
  2. Step 2: Convert to fraction form
    126,989.80/175,233.54 = 70,399.96/x
  3. Step 3: Cross multiply
    126,989.80x = 175,233.54 × 70,399.96
  4. Step 4: Simplify right side
    126,989.80x = 12,336,434,206.66
  5. Step 5: Solve for x
    x = 12,336,434,206.66/126,989.80
  6. Step 6: Final answer
    x = 97,145.08

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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.