Home / 147,856.89-221,789.28-42,675.75

Finding the Fourth Proportional to 147,856.89, 221,789.28 and 42,675.75

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Solution

The fourth proportional to 147,856.89, 221,789.28 and 42,675.75 is: 64,014.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,856.89 : 221,789.28 = 42,675.75 : x
  2. Step 2: Convert to fraction form
    147,856.89/221,789.28 = 42,675.75/x
  3. Step 3: Cross multiply
    147,856.89x = 221,789.28 × 42,675.75
  4. Step 4: Simplify right side
    147,856.89x = 9,465,023,865.96
  5. Step 5: Solve for x
    x = 9,465,023,865.96/147,856.89
  6. Step 6: Final answer
    x = 64,014.76

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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.