Home / 219,319.60-328,979.40-124,513.15

Finding the Fourth Proportional to 219,319.60, 328,979.40 and 124,513.15

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Solution

The fourth proportional to 219,319.60, 328,979.40 and 124,513.15 is: 186,769.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,319.60 : 328,979.40 = 124,513.15 : x
  2. Step 2: Convert to fraction form
    219,319.60/328,979.40 = 124,513.15/x
  3. Step 3: Cross multiply
    219,319.60x = 328,979.40 × 124,513.15
  4. Step 4: Simplify right side
    219,319.60x = 40,962,261,379.11
  5. Step 5: Solve for x
    x = 40,962,261,379.11/219,319.60
  6. Step 6: Final answer
    x = 186,769.73

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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.