Home / 154,023.10-231,111.45-87,514.30

Finding the Fourth Proportional to 154,023.10, 231,111.45 and 87,514.30

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Solution

The fourth proportional to 154,023.10, 231,111.45 and 87,514.30 is: 131,315.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,023.10 : 231,111.45 = 87,514.30 : x
  2. Step 2: Convert to fraction form
    154,023.10/231,111.45 = 87,514.30/x
  3. Step 3: Cross multiply
    154,023.10x = 231,111.45 × 87,514.30
  4. Step 4: Simplify right side
    154,023.10x = 20,225,556,768.74
  5. Step 5: Solve for x
    x = 20,225,556,768.74/154,023.10
  6. Step 6: Final answer
    x = 131,315.09

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1.5x scale

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.