Home / 121,763.20-182,673.60-38,657.20

Finding the Fourth Proportional to 121,763.20, 182,673.60 and 38,657.20

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Solution

The fourth proportional to 121,763.20, 182,673.60 and 38,657.20 is: 57,994.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,763.20 : 182,673.60 = 38,657.20 : x
  2. Step 2: Convert to fraction form
    121,763.20/182,673.60 = 38,657.20/x
  3. Step 3: Cross multiply
    121,763.20x = 182,673.60 × 38,657.20
  4. Step 4: Simplify right side
    121,763.20x = 7,061,649,889.92
  5. Step 5: Solve for x
    x = 7,061,649,889.92/121,763.20
  6. Step 6: Final answer
    x = 57,994.94

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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.