Home / 119,616.48-164,878.31-80,842.16

Finding the Fourth Proportional to 119,616.48, 164,878.31 and 80,842.16

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Solution

The fourth proportional to 119,616.48, 164,878.31 and 80,842.16 is: 111,432.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,616.48 : 164,878.31 = 80,842.16 : x
  2. Step 2: Convert to fraction form
    119,616.48/164,878.31 = 80,842.16/x
  3. Step 3: Cross multiply
    119,616.48x = 164,878.31 × 80,842.16
  4. Step 4: Simplify right side
    119,616.48x = 13,329,117,488.95
  5. Step 5: Solve for x
    x = 13,329,117,488.95/119,616.48
  6. Step 6: Final answer
    x = 111,432.12

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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.