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Finding the Fourth Proportional to 147,987.80, 222,014.10 and 73,143.80

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Solution

The fourth proportional to 147,987.80, 222,014.10 and 73,143.80 is: 109,731.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,987.80 : 222,014.10 = 73,143.80 : x
  2. Step 2: Convert to fraction form
    147,987.80/222,014.10 = 73,143.80/x
  3. Step 3: Cross multiply
    147,987.80x = 222,014.10 × 73,143.80
  4. Step 4: Simplify right side
    147,987.80x = 16,238,954,927.58
  5. Step 5: Solve for x
    x = 16,238,954,927.58/147,987.80
  6. Step 6: Final answer
    x = 109,731.71

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1.5x scale

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.