Home / 146,985.36-220,479.24-47,145.72

Finding the Fourth Proportional to 146,985.36, 220,479.24 and 47,145.72

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Solution

The fourth proportional to 146,985.36, 220,479.24 and 47,145.72 is: 70,718.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,985.36 : 220,479.24 = 47,145.72 : x
  2. Step 2: Convert to fraction form
    146,985.36/220,479.24 = 47,145.72/x
  3. Step 3: Cross multiply
    146,985.36x = 220,479.24 × 47,145.72
  4. Step 4: Simplify right side
    146,985.36x = 10,394,652,514.85
  5. Step 5: Solve for x
    x = 10,394,652,514.85/146,985.36
  6. Step 6: Final answer
    x = 70,718.96

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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.