Home / 126,041.87-173,930.91-78,294.35

Finding the Fourth Proportional to 126,041.87, 173,930.91 and 78,294.35

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Solution

The fourth proportional to 126,041.87, 173,930.91 and 78,294.35 is: 108,041.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,041.87 : 173,930.91 = 78,294.35 : x
  2. Step 2: Convert to fraction form
    126,041.87/173,930.91 = 78,294.35/x
  3. Step 3: Cross multiply
    126,041.87x = 173,930.91 × 78,294.35
  4. Step 4: Simplify right side
    126,041.87x = 13,617,807,543.36
  5. Step 5: Solve for x
    x = 13,617,807,543.36/126,041.87
  6. Step 6: Final answer
    x = 108,041.94

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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.