Home / 155,303.62-214,304.19-90,787.94

Finding the Fourth Proportional to 155,303.62, 214,304.19 and 90,787.94

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Solution

The fourth proportional to 155,303.62, 214,304.19 and 90,787.94 is: 125,278.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,303.62 : 214,304.19 = 90,787.94 : x
  2. Step 2: Convert to fraction form
    155,303.62/214,304.19 = 90,787.94/x
  3. Step 3: Cross multiply
    155,303.62x = 214,304.19 × 90,787.94
  4. Step 4: Simplify right side
    155,303.62x = 19,456,235,943.47
  5. Step 5: Solve for x
    x = 19,456,235,943.47/155,303.62
  6. Step 6: Final answer
    x = 125,278.70

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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.