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Finding the Fourth Proportional to 147,969.80, 221,987.10 and 73,125.80

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Solution

The fourth proportional to 147,969.80, 221,987.10 and 73,125.80 is: 109,704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,969.80 : 221,987.10 = 73,125.80 : x
  2. Step 2: Convert to fraction form
    147,969.80/221,987.10 = 73,125.80/x
  3. Step 3: Cross multiply
    147,969.80x = 221,987.10 × 73,125.80
  4. Step 4: Simplify right side
    147,969.80x = 16,232,984,277.18
  5. Step 5: Solve for x
    x = 16,232,984,277.18/147,969.80
  6. Step 6: Final answer
    x = 109,704.71

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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.