Home / 126,456.85-174,591.81-81,154.36

Finding the Fourth Proportional to 126,456.85, 174,591.81 and 81,154.36

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Solution

The fourth proportional to 126,456.85, 174,591.81 and 81,154.36 is: 112,045.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,456.85 : 174,591.81 = 81,154.36 : x
  2. Step 2: Convert to fraction form
    126,456.85/174,591.81 = 81,154.36/x
  3. Step 3: Cross multiply
    126,456.85x = 174,591.81 × 81,154.36
  4. Step 4: Simplify right side
    126,456.85x = 14,168,885,323.06
  5. Step 5: Solve for x
    x = 14,168,885,323.06/126,456.85
  6. Step 6: Final answer
    x = 112,045.22

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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.