Home / 147,278.68-203,237.34-83,608.12

Finding the Fourth Proportional to 147,278.68, 203,237.34 and 83,608.12

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Solution

The fourth proportional to 147,278.68, 203,237.34 and 83,608.12 is: 115,375.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,278.68 : 203,237.34 = 83,608.12 : x
  2. Step 2: Convert to fraction form
    147,278.68/203,237.34 = 83,608.12/x
  3. Step 3: Cross multiply
    147,278.68x = 203,237.34 × 83,608.12
  4. Step 4: Simplify right side
    147,278.68x = 16,992,291,911.20
  5. Step 5: Solve for x
    x = 16,992,291,911.20/147,278.68
  6. Step 6: Final answer
    x = 115,375.10

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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.