Home / 154,023.40-231,035.10-87,668.20

Finding the Fourth Proportional to 154,023.40, 231,035.10 and 87,668.20

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Solution

The fourth proportional to 154,023.40, 231,035.10 and 87,668.20 is: 131,502.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,023.40 : 231,035.10 = 87,668.20 : x
  2. Step 2: Convert to fraction form
    154,023.40/231,035.10 = 87,668.20/x
  3. Step 3: Cross multiply
    154,023.40x = 231,035.10 × 87,668.20
  4. Step 4: Simplify right side
    154,023.40x = 20,254,431,353.82
  5. Step 5: Solve for x
    x = 20,254,431,353.82/154,023.40
  6. Step 6: Final answer
    x = 131,502.30

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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.