Home / 147,645.40-221,489.70-47,788.60

Finding the Fourth Proportional to 147,645.40, 221,489.70 and 47,788.60

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Solution

The fourth proportional to 147,645.40, 221,489.70 and 47,788.60 is: 71,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,645.40 : 221,489.70 = 47,788.60 : x
  2. Step 2: Convert to fraction form
    147,645.40/221,489.70 = 47,788.60/x
  3. Step 3: Cross multiply
    147,645.40x = 221,489.70 × 47,788.60
  4. Step 4: Simplify right side
    147,645.40x = 10,584,682,677.42
  5. Step 5: Solve for x
    x = 10,584,682,677.42/147,645.40
  6. Step 6: Final answer
    x = 71,689.89

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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.