Home / 155,121.18-232,484.93-80,227.36

Finding the Fourth Proportional to 155,121.18, 232,484.93 and 80,227.36

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Solution

The fourth proportional to 155,121.18, 232,484.93 and 80,227.36 is: 120,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,121.18 : 232,484.93 = 80,227.36 : x
  2. Step 2: Convert to fraction form
    155,121.18/232,484.93 = 80,227.36/x
  3. Step 3: Cross multiply
    155,121.18x = 232,484.93 × 80,227.36
  4. Step 4: Simplify right side
    155,121.18x = 18,651,652,815.29
  5. Step 5: Solve for x
    x = 18,651,652,815.29/155,121.18
  6. Step 6: Final answer
    x = 120,239.24

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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.