Home / 147,945.75-221,920.24-42,765.63

Finding the Fourth Proportional to 147,945.75, 221,920.24 and 42,765.63

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Solution

The fourth proportional to 147,945.75, 221,920.24 and 42,765.63 is: 64,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,945.75 : 221,920.24 = 42,765.63 : x
  2. Step 2: Convert to fraction form
    147,945.75/221,920.24 = 42,765.63/x
  3. Step 3: Cross multiply
    147,945.75x = 221,920.24 × 42,765.63
  4. Step 4: Simplify right side
    147,945.75x = 9,490,557,763.75
  5. Step 5: Solve for x
    x = 9,490,557,763.75/147,945.75
  6. Step 6: Final answer
    x = 64,148.91

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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.