Home / 185,891.20-278,836.80-52,758.40

Finding the Fourth Proportional to 185,891.20, 278,836.80 and 52,758.40

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Solution

The fourth proportional to 185,891.20, 278,836.80 and 52,758.40 is: 79,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,891.20 : 278,836.80 = 52,758.40 : x
  2. Step 2: Convert to fraction form
    185,891.20/278,836.80 = 52,758.40/x
  3. Step 3: Cross multiply
    185,891.20x = 278,836.80 × 52,758.40
  4. Step 4: Simplify right side
    185,891.20x = 14,710,983,429.12
  5. Step 5: Solve for x
    x = 14,710,983,429.12/185,891.20
  6. Step 6: Final answer
    x = 79,137.60

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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.