Home / 121,820.21-182,607.65-50,782.18

Finding the Fourth Proportional to 121,820.21, 182,607.65 and 50,782.18

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Solution

The fourth proportional to 121,820.21, 182,607.65 and 50,782.18 is: 76,122.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,820.21 : 182,607.65 = 50,782.18 : x
  2. Step 2: Convert to fraction form
    121,820.21/182,607.65 = 50,782.18/x
  3. Step 3: Cross multiply
    121,820.21x = 182,607.65 × 50,782.18
  4. Step 4: Simplify right side
    121,820.21x = 9,273,213,841.25
  5. Step 5: Solve for x
    x = 9,273,213,841.25/121,820.21
  6. Step 6: Final answer
    x = 76,122.13

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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.