Home / 124,879.02-172,280.79-81,868.83

Finding the Fourth Proportional to 124,879.02, 172,280.79 and 81,868.83

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Solution

The fourth proportional to 124,879.02, 172,280.79 and 81,868.83 is: 112,944.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,879.02 : 172,280.79 = 81,868.83 : x
  2. Step 2: Convert to fraction form
    124,879.02/172,280.79 = 81,868.83/x
  3. Step 3: Cross multiply
    124,879.02x = 172,280.79 × 81,868.83
  4. Step 4: Simplify right side
    124,879.02x = 14,104,426,708.78
  5. Step 5: Solve for x
    x = 14,104,426,708.78/124,879.02
  6. Step 6: Final answer
    x = 112,944.73

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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.