Home / 124,280.64-171,452.68-83,979.68

Finding the Fourth Proportional to 124,280.64, 171,452.68 and 83,979.68

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Solution

The fourth proportional to 124,280.64, 171,452.68 and 83,979.68 is: 115,855.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,280.64 : 171,452.68 = 83,979.68 : x
  2. Step 2: Convert to fraction form
    124,280.64/171,452.68 = 83,979.68/x
  3. Step 3: Cross multiply
    124,280.64x = 171,452.68 × 83,979.68
  4. Step 4: Simplify right side
    124,280.64x = 14,398,541,201.54
  5. Step 5: Solve for x
    x = 14,398,541,201.54/124,280.64
  6. Step 6: Final answer
    x = 115,855.06

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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.