Home / 126,890.07-175,029.01-81,627

Finding the Fourth Proportional to 126,890.07, 175,029.01 and 81,627

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Solution

The fourth proportional to 126,890.07, 175,029.01 and 81,627 is: 112,594.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,890.07 : 175,029.01 = 81,627 : x
  2. Step 2: Convert to fraction form
    126,890.07/175,029.01 = 81,627/x
  3. Step 3: Cross multiply
    126,890.07x = 175,029.01 × 81,627
  4. Step 4: Simplify right side
    126,890.07x = 14,287,092,999.27
  5. Step 5: Solve for x
    x = 14,287,092,999.27/126,890.07
  6. Step 6: Final answer
    x = 112,594.26

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1.5x scale

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.