Home / 185,784.81-278,589.33-71,985.87

Finding the Fourth Proportional to 185,784.81, 278,589.33 and 71,985.87

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Solution

The fourth proportional to 185,784.81, 278,589.33 and 71,985.87 is: 107,944.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,784.81 : 278,589.33 = 71,985.87 : x
  2. Step 2: Convert to fraction form
    185,784.81/278,589.33 = 71,985.87/x
  3. Step 3: Cross multiply
    185,784.81x = 278,589.33 × 71,985.87
  4. Step 4: Simplify right side
    185,784.81x = 20,054,495,292.77
  5. Step 5: Solve for x
    x = 20,054,495,292.77/185,784.81
  6. Step 6: Final answer
    x = 107,944.75

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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.