Home / 126,688.42-174,833.22-76,390.66

Finding the Fourth Proportional to 126,688.42, 174,833.22 and 76,390.66

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Solution

The fourth proportional to 126,688.42, 174,833.22 and 76,390.66 is: 105,421.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,688.42 : 174,833.22 = 76,390.66 : x
  2. Step 2: Convert to fraction form
    126,688.42/174,833.22 = 76,390.66/x
  3. Step 3: Cross multiply
    126,688.42x = 174,833.22 × 76,390.66
  4. Step 4: Simplify right side
    126,688.42x = 13,355,625,065.73
  5. Step 5: Solve for x
    x = 13,355,625,065.73/126,688.42
  6. Step 6: Final answer
    x = 105,421.04

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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.