Home / 154,543.02-231,814.53-84,384.06

Finding the Fourth Proportional to 154,543.02, 231,814.53 and 84,384.06

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Solution

The fourth proportional to 154,543.02, 231,814.53 and 84,384.06 is: 126,576.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,543.02 : 231,814.53 = 84,384.06 : x
  2. Step 2: Convert to fraction form
    154,543.02/231,814.53 = 84,384.06/x
  3. Step 3: Cross multiply
    154,543.02x = 231,814.53 × 84,384.06
  4. Step 4: Simplify right side
    154,543.02x = 19,561,451,208.39
  5. Step 5: Solve for x
    x = 19,561,451,208.39/154,543.02
  6. Step 6: Final answer
    x = 126,576.09

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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.