Home / 120,842.19-181,281.71-61,645.57

Finding the Fourth Proportional to 120,842.19, 181,281.71 and 61,645.57

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Solution

The fourth proportional to 120,842.19, 181,281.71 and 61,645.57 is: 92,477.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,842.19 : 181,281.71 = 61,645.57 : x
  2. Step 2: Convert to fraction form
    120,842.19/181,281.71 = 61,645.57/x
  3. Step 3: Cross multiply
    120,842.19x = 181,281.71 × 61,645.57
  4. Step 4: Simplify right side
    120,842.19x = 11,175,214,044.43
  5. Step 5: Solve for x
    x = 11,175,214,044.43/120,842.19
  6. Step 6: Final answer
    x = 92,477.75

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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.