Home / 147,679.92-221,509.11-57,705.72

Finding the Fourth Proportional to 147,679.92, 221,509.11 and 57,705.72

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Solution

The fourth proportional to 147,679.92, 221,509.11 and 57,705.72 is: 86,554.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,679.92 : 221,509.11 = 57,705.72 : x
  2. Step 2: Convert to fraction form
    147,679.92/221,509.11 = 57,705.72/x
  3. Step 3: Cross multiply
    147,679.92x = 221,509.11 × 57,705.72
  4. Step 4: Simplify right side
    147,679.92x = 12,782,342,679.11
  5. Step 5: Solve for x
    x = 12,782,342,679.11/147,679.92
  6. Step 6: Final answer
    x = 86,554.37

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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.