Home / 121,850.28-182,790-42,948.18

Finding the Fourth Proportional to 121,850.28, 182,790 and 42,948.18

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Solution

The fourth proportional to 121,850.28, 182,790 and 42,948.18 is: 64,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,850.28 : 182,790 = 42,948.18 : x
  2. Step 2: Convert to fraction form
    121,850.28/182,790 = 42,948.18/x
  3. Step 3: Cross multiply
    121,850.28x = 182,790 × 42,948.18
  4. Step 4: Simplify right side
    121,850.28x = 7,850,497,822.20
  5. Step 5: Solve for x
    x = 7,850,497,822.20/121,850.28
  6. Step 6: Final answer
    x = 64,427.41

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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.