Home / 126,733.90-174,877.32-100,958.10

Finding the Fourth Proportional to 126,733.90, 174,877.32 and 100,958.10

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Solution

The fourth proportional to 126,733.90, 174,877.32 and 100,958.10 is: 139,309.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,733.90 : 174,877.32 = 100,958.10 : x
  2. Step 2: Convert to fraction form
    126,733.90/174,877.32 = 100,958.10/x
  3. Step 3: Cross multiply
    126,733.90x = 174,877.32 × 100,958.10
  4. Step 4: Simplify right side
    126,733.90x = 17,655,281,443.10
  5. Step 5: Solve for x
    x = 17,655,281,443.10/126,733.90
  6. Step 6: Final answer
    x = 139,309.86

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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.