Home / 117,285.61-161,853.49-63,570.05

Finding the Fourth Proportional to 117,285.61, 161,853.49 and 63,570.05

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Solution

The fourth proportional to 117,285.61, 161,853.49 and 63,570.05 is: 87,726.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,285.61 : 161,853.49 = 63,570.05 : x
  2. Step 2: Convert to fraction form
    117,285.61/161,853.49 = 63,570.05/x
  3. Step 3: Cross multiply
    117,285.61x = 161,853.49 × 63,570.05
  4. Step 4: Simplify right side
    117,285.61x = 10,289,034,451.97
  5. Step 5: Solve for x
    x = 10,289,034,451.97/117,285.61
  6. Step 6: Final answer
    x = 87,726.32

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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.