Home / 119,077.04-164,239.68-78,825.28

Finding the Fourth Proportional to 119,077.04, 164,239.68 and 78,825.28

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Solution

The fourth proportional to 119,077.04, 164,239.68 and 78,825.28 is: 108,721.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,077.04 : 164,239.68 = 78,825.28 : x
  2. Step 2: Convert to fraction form
    119,077.04/164,239.68 = 78,825.28/x
  3. Step 3: Cross multiply
    119,077.04x = 164,239.68 × 78,825.28
  4. Step 4: Simplify right side
    119,077.04x = 12,946,238,763.11
  5. Step 5: Solve for x
    x = 12,946,238,763.11/119,077.04
  6. Step 6: Final answer
    x = 108,721.54

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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.