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Finding the Fourth Proportional to 147,989.80, 221,838.90 and 73,048.60

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Solution

The fourth proportional to 147,989.80, 221,838.90 and 73,048.60 is: 109,500.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,989.80 : 221,838.90 = 73,048.60 : x
  2. Step 2: Convert to fraction form
    147,989.80/221,838.90 = 73,048.60/x
  3. Step 3: Cross multiply
    147,989.80x = 221,838.90 × 73,048.60
  4. Step 4: Simplify right side
    147,989.80x = 16,205,021,070.54
  5. Step 5: Solve for x
    x = 16,205,021,070.54/147,989.80
  6. Step 6: Final answer
    x = 109,500.93

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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.