Home / 105,815.07-158,514.87-61,348.35

Finding the Fourth Proportional to 105,815.07, 158,514.87 and 61,348.35

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Solution

The fourth proportional to 105,815.07, 158,514.87 and 61,348.35 is: 91,902.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,815.07 : 158,514.87 = 61,348.35 : x
  2. Step 2: Convert to fraction form
    105,815.07/158,514.87 = 61,348.35/x
  3. Step 3: Cross multiply
    105,815.07x = 158,514.87 × 61,348.35
  4. Step 4: Simplify right side
    105,815.07x = 9,724,625,724.96
  5. Step 5: Solve for x
    x = 9,724,625,724.96/105,815.07
  6. Step 6: Final answer
    x = 91,902.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.