Home / 185,925.04-278,837.74-80,719

Finding the Fourth Proportional to 185,925.04, 278,837.74 and 80,719

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Solution

The fourth proportional to 185,925.04, 278,837.74 and 80,719 is: 121,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,925.04 : 278,837.74 = 80,719 : x
  2. Step 2: Convert to fraction form
    185,925.04/278,837.74 = 80,719/x
  3. Step 3: Cross multiply
    185,925.04x = 278,837.74 × 80,719
  4. Step 4: Simplify right side
    185,925.04x = 22,507,503,535.06
  5. Step 5: Solve for x
    x = 22,507,503,535.06/185,925.04
  6. Step 6: Final answer
    x = 121,056.87

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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.