Home / 185,875.43-278,656.40-80,615.12

Finding the Fourth Proportional to 185,875.43, 278,656.40 and 80,615.12

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Solution

The fourth proportional to 185,875.43, 278,656.40 and 80,615.12 is: 120,854.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,875.43 : 278,656.40 = 80,615.12 : x
  2. Step 2: Convert to fraction form
    185,875.43/278,656.40 = 80,615.12/x
  3. Step 3: Cross multiply
    185,875.43x = 278,656.40 × 80,615.12
  4. Step 4: Simplify right side
    185,875.43x = 22,463,917,933.02
  5. Step 5: Solve for x
    x = 22,463,917,933.02/185,875.43
  6. Step 6: Final answer
    x = 120,854.70

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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.