Home / 147,039.20-202,908.24-79,971.20

Finding the Fourth Proportional to 147,039.20, 202,908.24 and 79,971.20

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Solution

The fourth proportional to 147,039.20, 202,908.24 and 79,971.20 is: 110,357.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,039.20 : 202,908.24 = 79,971.20 : x
  2. Step 2: Convert to fraction form
    147,039.20/202,908.24 = 79,971.20/x
  3. Step 3: Cross multiply
    147,039.20x = 202,908.24 × 79,971.20
  4. Step 4: Simplify right side
    147,039.20x = 16,226,815,442.69
  5. Step 5: Solve for x
    x = 16,226,815,442.69/147,039.20
  6. Step 6: Final answer
    x = 110,357.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.