Home / 155,351.10-232,853.85-85,280.70

Finding the Fourth Proportional to 155,351.10, 232,853.85 and 85,280.70

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Solution

The fourth proportional to 155,351.10, 232,853.85 and 85,280.70 is: 127,826.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,351.10 : 232,853.85 = 85,280.70 : x
  2. Step 2: Convert to fraction form
    155,351.10/232,853.85 = 85,280.70/x
  3. Step 3: Cross multiply
    155,351.10x = 232,853.85 × 85,280.70
  4. Step 4: Simplify right side
    155,351.10x = 19,857,939,325.70
  5. Step 5: Solve for x
    x = 19,857,939,325.70/155,351.10
  6. Step 6: Final answer
    x = 127,826.19

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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.