Home / 126,721.50-174,875.67-73,729.50

Finding the Fourth Proportional to 126,721.50, 174,875.67 and 73,729.50

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Solution

The fourth proportional to 126,721.50, 174,875.67 and 73,729.50 is: 101,746.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,721.50 : 174,875.67 = 73,729.50 : x
  2. Step 2: Convert to fraction form
    126,721.50/174,875.67 = 73,729.50/x
  3. Step 3: Cross multiply
    126,721.50x = 174,875.67 × 73,729.50
  4. Step 4: Simplify right side
    126,721.50x = 12,893,495,711.27
  5. Step 5: Solve for x
    x = 12,893,495,711.27/126,721.50
  6. Step 6: Final answer
    x = 101,746.71

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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.