Home / 121,419.46-182,181.56-65,193.86

Finding the Fourth Proportional to 121,419.46, 182,181.56 and 65,193.86

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Solution

The fourth proportional to 121,419.46, 182,181.56 and 65,193.86 is: 97,818.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,419.46 : 182,181.56 = 65,193.86 : x
  2. Step 2: Convert to fraction form
    121,419.46/182,181.56 = 65,193.86/x
  3. Step 3: Cross multiply
    121,419.46x = 182,181.56 × 65,193.86
  4. Step 4: Simplify right side
    121,419.46x = 11,877,119,246.71
  5. Step 5: Solve for x
    x = 11,877,119,246.71/121,419.46
  6. Step 6: Final answer
    x = 97,818.91

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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.