Home / 147,808.20-221,745.10-42,619

Finding the Fourth Proportional to 147,808.20, 221,745.10 and 42,619

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Solution

The fourth proportional to 147,808.20, 221,745.10 and 42,619 is: 63,937.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,808.20 : 221,745.10 = 42,619 : x
  2. Step 2: Convert to fraction form
    147,808.20/221,745.10 = 42,619/x
  3. Step 3: Cross multiply
    147,808.20x = 221,745.10 × 42,619
  4. Step 4: Simplify right side
    147,808.20x = 9,450,554,416.90
  5. Step 5: Solve for x
    x = 9,450,554,416.90/147,808.20
  6. Step 6: Final answer
    x = 63,937.96

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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.