Home / 124,878.75-172,329.17-68,288.91

Finding the Fourth Proportional to 124,878.75, 172,329.17 and 68,288.91

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Solution

The fourth proportional to 124,878.75, 172,329.17 and 68,288.91 is: 94,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,878.75 : 172,329.17 = 68,288.91 : x
  2. Step 2: Convert to fraction form
    124,878.75/172,329.17 = 68,288.91/x
  3. Step 3: Cross multiply
    124,878.75x = 172,329.17 × 68,288.91
  4. Step 4: Simplify right side
    124,878.75x = 11,768,170,192.83
  5. Step 5: Solve for x
    x = 11,768,170,192.83/124,878.75
  6. Step 6: Final answer
    x = 94,236.77

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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.