Home / 185,712.16-278,565.44-45,470.80

Finding the Fourth Proportional to 185,712.16, 278,565.44 and 45,470.80

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Solution

The fourth proportional to 185,712.16, 278,565.44 and 45,470.80 is: 68,205.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,712.16 : 278,565.44 = 45,470.80 : x
  2. Step 2: Convert to fraction form
    185,712.16/278,565.44 = 45,470.80/x
  3. Step 3: Cross multiply
    185,712.16x = 278,565.44 × 45,470.80
  4. Step 4: Simplify right side
    185,712.16x = 12,666,593,409.15
  5. Step 5: Solve for x
    x = 12,666,593,409.15/185,712.16
  6. Step 6: Final answer
    x = 68,205.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.