Home / 140,490.44-193,876.80-76,828.28

Finding the Fourth Proportional to 140,490.44, 193,876.80 and 76,828.28

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Solution

The fourth proportional to 140,490.44, 193,876.80 and 76,828.28 is: 106,023.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,490.44 : 193,876.80 = 76,828.28 : x
  2. Step 2: Convert to fraction form
    140,490.44/193,876.80 = 76,828.28/x
  3. Step 3: Cross multiply
    140,490.44x = 193,876.80 × 76,828.28
  4. Step 4: Simplify right side
    140,490.44x = 14,895,221,075.90
  5. Step 5: Solve for x
    x = 14,895,221,075.90/140,490.44
  6. Step 6: Final answer
    x = 106,023.02

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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.