Home / 102,979.44-142,104.75-57,649.77

Finding the Fourth Proportional to 102,979.44, 142,104.75 and 57,649.77

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Solution

The fourth proportional to 102,979.44, 142,104.75 and 57,649.77 is: 79,552.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,979.44 : 142,104.75 = 57,649.77 : x
  2. Step 2: Convert to fraction form
    102,979.44/142,104.75 = 57,649.77/x
  3. Step 3: Cross multiply
    102,979.44x = 142,104.75 × 57,649.77
  4. Step 4: Simplify right side
    102,979.44x = 8,192,306,153.41
  5. Step 5: Solve for x
    x = 8,192,306,153.41/102,979.44
  6. Step 6: Final answer
    x = 79,552.83

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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.