Home / 121,389.12-182,083.41-42,525.90

Finding the Fourth Proportional to 121,389.12, 182,083.41 and 42,525.90

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Solution

The fourth proportional to 121,389.12, 182,083.41 and 42,525.90 is: 63,788.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,389.12 : 182,083.41 = 42,525.90 : x
  2. Step 2: Convert to fraction form
    121,389.12/182,083.41 = 42,525.90/x
  3. Step 3: Cross multiply
    121,389.12x = 182,083.41 × 42,525.90
  4. Step 4: Simplify right side
    121,389.12x = 7,743,260,885.32
  5. Step 5: Solve for x
    x = 7,743,260,885.32/121,389.12
  6. Step 6: Final answer
    x = 63,788.76

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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.