Home / 147,959.55-204,180.03-83,428.20

Finding the Fourth Proportional to 147,959.55, 204,180.03 and 83,428.20

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Solution

The fourth proportional to 147,959.55, 204,180.03 and 83,428.20 is: 115,128.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,959.55 : 204,180.03 = 83,428.20 : x
  2. Step 2: Convert to fraction form
    147,959.55/204,180.03 = 83,428.20/x
  3. Step 3: Cross multiply
    147,959.55x = 204,180.03 × 83,428.20
  4. Step 4: Simplify right side
    147,959.55x = 17,034,372,378.85
  5. Step 5: Solve for x
    x = 17,034,372,378.85/147,959.55
  6. Step 6: Final answer
    x = 115,128.58

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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.