Home / 126,177.77-174,135.78-72,473.15

Finding the Fourth Proportional to 126,177.77, 174,135.78 and 72,473.15

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Solution

The fourth proportional to 126,177.77, 174,135.78 and 72,473.15 is: 100,018.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,177.77 : 174,135.78 = 72,473.15 : x
  2. Step 2: Convert to fraction form
    126,177.77/174,135.78 = 72,473.15/x
  3. Step 3: Cross multiply
    126,177.77x = 174,135.78 × 72,473.15
  4. Step 4: Simplify right side
    126,177.77x = 12,620,167,814.81
  5. Step 5: Solve for x
    x = 12,620,167,814.81/126,177.77
  6. Step 6: Final answer
    x = 100,018.95

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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.