Home / 121,408.35-182,001.58-42,479.52

Finding the Fourth Proportional to 121,408.35, 182,001.58 and 42,479.52

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Solution

The fourth proportional to 121,408.35, 182,001.58 and 42,479.52 is: 63,680.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,408.35 : 182,001.58 = 42,479.52 : x
  2. Step 2: Convert to fraction form
    121,408.35/182,001.58 = 42,479.52/x
  3. Step 3: Cross multiply
    121,408.35x = 182,001.58 × 42,479.52
  4. Step 4: Simplify right side
    121,408.35x = 7,731,340,231.64
  5. Step 5: Solve for x
    x = 7,731,340,231.64/121,408.35
  6. Step 6: Final answer
    x = 63,680.46

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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.