Home / 109,112.77-150,553.05-63,781.98

Finding the Fourth Proportional to 109,112.77, 150,553.05 and 63,781.98

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Solution

The fourth proportional to 109,112.77, 150,553.05 and 63,781.98 is: 88,005.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,112.77 : 150,553.05 = 63,781.98 : x
  2. Step 2: Convert to fraction form
    109,112.77/150,553.05 = 63,781.98/x
  3. Step 3: Cross multiply
    109,112.77x = 150,553.05 × 63,781.98
  4. Step 4: Simplify right side
    109,112.77x = 9,602,571,504.45
  5. Step 5: Solve for x
    x = 9,602,571,504.45/109,112.77
  6. Step 6: Final answer
    x = 88,005.94

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1.5x scale

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.