Home / 147,280.68-203,240.10-83,610.12

Finding the Fourth Proportional to 147,280.68, 203,240.10 and 83,610.12

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Solution

The fourth proportional to 147,280.68, 203,240.10 and 83,610.12 is: 115,377.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,280.68 : 203,240.10 = 83,610.12 : x
  2. Step 2: Convert to fraction form
    147,280.68/203,240.10 = 83,610.12/x
  3. Step 3: Cross multiply
    147,280.68x = 203,240.10 × 83,610.12
  4. Step 4: Simplify right side
    147,280.68x = 16,992,929,149.81
  5. Step 5: Solve for x
    x = 16,992,929,149.81/147,280.68
  6. Step 6: Final answer
    x = 115,377.86

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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.