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Finding the Fourth Proportional to 101,867.60, 152,802.42 and 30,790.80

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Solution

The fourth proportional to 101,867.60, 152,802.42 and 30,790.80 is: 46,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,867.60 : 152,802.42 = 30,790.80 : x
  2. Step 2: Convert to fraction form
    101,867.60/152,802.42 = 30,790.80/x
  3. Step 3: Cross multiply
    101,867.60x = 152,802.42 × 30,790.80
  4. Step 4: Simplify right side
    101,867.60x = 4,704,908,753.74
  5. Step 5: Solve for x
    x = 4,704,908,753.74/101,867.60
  6. Step 6: Final answer
    x = 46,186.51

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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.