Home / 186,854.11-280,379.58-81,746.89

Finding the Fourth Proportional to 186,854.11, 280,379.58 and 81,746.89

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Solution

The fourth proportional to 186,854.11, 280,379.58 and 81,746.89 is: 122,663.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,854.11 : 280,379.58 = 81,746.89 : x
  2. Step 2: Convert to fraction form
    186,854.11/280,379.58 = 81,746.89/x
  3. Step 3: Cross multiply
    186,854.11x = 280,379.58 × 81,746.89
  4. Step 4: Simplify right side
    186,854.11x = 22,920,157,677.01
  5. Step 5: Solve for x
    x = 22,920,157,677.01/186,854.11
  6. Step 6: Final answer
    x = 122,663.39

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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.