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Finding the Fourth Proportional to 160,104.77, 240,148.50 and 81,216.95

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Solution

The fourth proportional to 160,104.77, 240,148.50 and 81,216.95 is: 121,821.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,104.77 : 240,148.50 = 81,216.95 : x
  2. Step 2: Convert to fraction form
    160,104.77/240,148.50 = 81,216.95/x
  3. Step 3: Cross multiply
    160,104.77x = 240,148.50 × 81,216.95
  4. Step 4: Simplify right side
    160,104.77x = 19,504,128,717.08
  5. Step 5: Solve for x
    x = 19,504,128,717.08/160,104.77
  6. Step 6: Final answer
    x = 121,821.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.