Home / 147,650.80-221,330.40-72,709.60

Finding the Fourth Proportional to 147,650.80, 221,330.40 and 72,709.60

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Solution

The fourth proportional to 147,650.80, 221,330.40 and 72,709.60 is: 108,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,650.80 : 221,330.40 = 72,709.60 : x
  2. Step 2: Convert to fraction form
    147,650.80/221,330.40 = 72,709.60/x
  3. Step 3: Cross multiply
    147,650.80x = 221,330.40 × 72,709.60
  4. Step 4: Simplify right side
    147,650.80x = 16,092,844,851.84
  5. Step 5: Solve for x
    x = 16,092,844,851.84/147,650.80
  6. Step 6: Final answer
    x = 108,992.60

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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.