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Finding the Fourth Proportional to 147,897.20, 221,991.60 and 73,101.80

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Solution

The fourth proportional to 147,897.20, 221,991.60 and 73,101.80 is: 109,724.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,897.20 : 221,991.60 = 73,101.80 : x
  2. Step 2: Convert to fraction form
    147,897.20/221,991.60 = 73,101.80/x
  3. Step 3: Cross multiply
    147,897.20x = 221,991.60 × 73,101.80
  4. Step 4: Simplify right side
    147,897.20x = 16,227,985,544.88
  5. Step 5: Solve for x
    x = 16,227,985,544.88/147,897.20
  6. Step 6: Final answer
    x = 109,724.77

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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.