Home / 185,432.05-278,148.08-45,191.89

Finding the Fourth Proportional to 185,432.05, 278,148.08 and 45,191.89

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Solution

The fourth proportional to 185,432.05, 278,148.08 and 45,191.89 is: 67,787.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,432.05 : 278,148.08 = 45,191.89 : x
  2. Step 2: Convert to fraction form
    185,432.05/278,148.08 = 45,191.89/x
  3. Step 3: Cross multiply
    185,432.05x = 278,148.08 × 45,191.89
  4. Step 4: Simplify right side
    185,432.05x = 12,570,037,435.07
  5. Step 5: Solve for x
    x = 12,570,037,435.07/185,432.05
  6. Step 6: Final answer
    x = 67,787.84

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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.