Home / 147,789.40-221,684.10-145,456.60

Finding the Fourth Proportional to 147,789.40, 221,684.10 and 145,456.60

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Solution

The fourth proportional to 147,789.40, 221,684.10 and 145,456.60 is: 218,184.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,789.40 : 221,684.10 = 145,456.60 : x
  2. Step 2: Convert to fraction form
    147,789.40/221,684.10 = 145,456.60/x
  3. Step 3: Cross multiply
    147,789.40x = 221,684.10 × 145,456.60
  4. Step 4: Simplify right side
    147,789.40x = 32,245,415,460.06
  5. Step 5: Solve for x
    x = 32,245,415,460.06/147,789.40
  6. Step 6: Final answer
    x = 218,184.90

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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.