Home / 154,328.06-231,514.28-47,720.34

Finding the Fourth Proportional to 154,328.06, 231,514.28 and 47,720.34

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Solution

The fourth proportional to 154,328.06, 231,514.28 and 47,720.34 is: 71,587.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,328.06 : 231,514.28 = 47,720.34 : x
  2. Step 2: Convert to fraction form
    154,328.06/231,514.28 = 47,720.34/x
  3. Step 3: Cross multiply
    154,328.06x = 231,514.28 × 47,720.34
  4. Step 4: Simplify right side
    154,328.06x = 11,047,940,156.46
  5. Step 5: Solve for x
    x = 11,047,940,156.46/154,328.06
  6. Step 6: Final answer
    x = 71,587.37

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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.