Home / 98,447.28-147,712.23-42,299.70

Finding the Fourth Proportional to 98,447.28, 147,712.23 and 42,299.70

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Solution

The fourth proportional to 98,447.28, 147,712.23 and 42,299.70 is: 63,467.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,447.28 : 147,712.23 = 42,299.70 : x
  2. Step 2: Convert to fraction form
    98,447.28/147,712.23 = 42,299.70/x
  3. Step 3: Cross multiply
    98,447.28x = 147,712.23 × 42,299.70
  4. Step 4: Simplify right side
    98,447.28x = 6,248,183,015.33
  5. Step 5: Solve for x
    x = 6,248,183,015.33/98,447.28
  6. Step 6: Final answer
    x = 63,467.30

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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.