Home / 119,721.20-179,437.80-49,564.40

Finding the Fourth Proportional to 119,721.20, 179,437.80 and 49,564.40

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Solution

The fourth proportional to 119,721.20, 179,437.80 and 49,564.40 is: 74,286.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,721.20 : 179,437.80 = 49,564.40 : x
  2. Step 2: Convert to fraction form
    119,721.20/179,437.80 = 49,564.40/x
  3. Step 3: Cross multiply
    119,721.20x = 179,437.80 × 49,564.40
  4. Step 4: Simplify right side
    119,721.20x = 8,893,726,894.32
  5. Step 5: Solve for x
    x = 8,893,726,894.32/119,721.20
  6. Step 6: Final answer
    x = 74,286.98

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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.