Home / 109,374.18-164,074.92-42,805.70

Finding the Fourth Proportional to 109,374.18, 164,074.92 and 42,805.70

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Solution

The fourth proportional to 109,374.18, 164,074.92 and 42,805.70 is: 64,213.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,374.18 : 164,074.92 = 42,805.70 : x
  2. Step 2: Convert to fraction form
    109,374.18/164,074.92 = 42,805.70/x
  3. Step 3: Cross multiply
    109,374.18x = 164,074.92 × 42,805.70
  4. Step 4: Simplify right side
    109,374.18x = 7,023,341,803.04
  5. Step 5: Solve for x
    x = 7,023,341,803.04/109,374.18
  6. Step 6: Final answer
    x = 64,213.89

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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.