Home / 105,815.19-146,029.17-58,070.26

Finding the Fourth Proportional to 105,815.19, 146,029.17 and 58,070.26

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Solution

The fourth proportional to 105,815.19, 146,029.17 and 58,070.26 is: 80,139.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,815.19 : 146,029.17 = 58,070.26 : x
  2. Step 2: Convert to fraction form
    105,815.19/146,029.17 = 58,070.26/x
  3. Step 3: Cross multiply
    105,815.19x = 146,029.17 × 58,070.26
  4. Step 4: Simplify right side
    105,815.19x = 8,479,951,869.48
  5. Step 5: Solve for x
    x = 8,479,951,869.48/105,815.19
  6. Step 6: Final answer
    x = 80,139.27

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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.