Home / 155,348.49-232,521.51-80,365.41

Finding the Fourth Proportional to 155,348.49, 232,521.51 and 80,365.41

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Solution

The fourth proportional to 155,348.49, 232,521.51 and 80,365.41 is: 120,288.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,348.49 : 232,521.51 = 80,365.41 : x
  2. Step 2: Convert to fraction form
    155,348.49/232,521.51 = 80,365.41/x
  3. Step 3: Cross multiply
    155,348.49x = 232,521.51 × 80,365.41
  4. Step 4: Simplify right side
    155,348.49x = 18,686,686,484.97
  5. Step 5: Solve for x
    x = 18,686,686,484.97/155,348.49
  6. Step 6: Final answer
    x = 120,288.82

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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.