Home / 105,834.85-158,779.95-61,418.91

Finding the Fourth Proportional to 105,834.85, 158,779.95 and 61,418.91

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Solution

The fourth proportional to 105,834.85, 158,779.95 and 61,418.91 is: 92,144.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,834.85 : 158,779.95 = 61,418.91 : x
  2. Step 2: Convert to fraction form
    105,834.85/158,779.95 = 61,418.91/x
  3. Step 3: Cross multiply
    105,834.85x = 158,779.95 × 61,418.91
  4. Step 4: Simplify right side
    105,834.85x = 9,752,090,930.82
  5. Step 5: Solve for x
    x = 9,752,090,930.82/105,834.85
  6. Step 6: Final answer
    x = 92,144.42

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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.