Home / 185,712.64-278,536.04-84,487.18

Finding the Fourth Proportional to 185,712.64, 278,536.04 and 84,487.18

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Solution

The fourth proportional to 185,712.64, 278,536.04 and 84,487.18 is: 126,715.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,712.64 : 278,536.04 = 84,487.18 : x
  2. Step 2: Convert to fraction form
    185,712.64/278,536.04 = 84,487.18/x
  3. Step 3: Cross multiply
    185,712.64x = 278,536.04 × 84,487.18
  4. Step 4: Simplify right side
    185,712.64x = 23,532,724,547.97
  5. Step 5: Solve for x
    x = 23,532,724,547.97/185,712.64
  6. Step 6: Final answer
    x = 126,715.79

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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.