Home / 154,199.72-231,142.02-87,498.96

Finding the Fourth Proportional to 154,199.72, 231,142.02 and 87,498.96

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Solution

The fourth proportional to 154,199.72, 231,142.02 and 87,498.96 is: 131,159.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,199.72 : 231,142.02 = 87,498.96 : x
  2. Step 2: Convert to fraction form
    154,199.72/231,142.02 = 87,498.96/x
  3. Step 3: Cross multiply
    154,199.72x = 231,142.02 × 87,498.96
  4. Step 4: Simplify right side
    154,199.72x = 20,224,686,362.30
  5. Step 5: Solve for x
    x = 20,224,686,362.30/154,199.72
  6. Step 6: Final answer
    x = 131,159.03

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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.