Home / 126,243.50-174,221.59-72,545.36

Finding the Fourth Proportional to 126,243.50, 174,221.59 and 72,545.36

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Solution

The fourth proportional to 126,243.50, 174,221.59 and 72,545.36 is: 100,115.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,243.50 : 174,221.59 = 72,545.36 : x
  2. Step 2: Convert to fraction form
    126,243.50/174,221.59 = 72,545.36/x
  3. Step 3: Cross multiply
    126,243.50x = 174,221.59 × 72,545.36
  4. Step 4: Simplify right side
    126,243.50x = 12,638,967,966.32
  5. Step 5: Solve for x
    x = 12,638,967,966.32/126,243.50
  6. Step 6: Final answer
    x = 100,115.79

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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.