Home / 140,663.72-194,120.52-77,001.50

Finding the Fourth Proportional to 140,663.72, 194,120.52 and 77,001.50

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Solution

The fourth proportional to 140,663.72, 194,120.52 and 77,001.50 is: 106,264.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,663.72 : 194,120.52 = 77,001.50 : x
  2. Step 2: Convert to fraction form
    140,663.72/194,120.52 = 77,001.50/x
  3. Step 3: Cross multiply
    140,663.72x = 194,120.52 × 77,001.50
  4. Step 4: Simplify right side
    140,663.72x = 14,947,571,220.78
  5. Step 5: Solve for x
    x = 14,947,571,220.78/140,663.72
  6. Step 6: Final answer
    x = 106,264.58

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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.