Home / 227,118.50-313,421-129,001.04

Finding the Fourth Proportional to 227,118.50, 313,421 and 129,001.04

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Solution

The fourth proportional to 227,118.50, 313,421 and 129,001.04 is: 178,020.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,118.50 : 313,421 = 129,001.04 : x
  2. Step 2: Convert to fraction form
    227,118.50/313,421 = 129,001.04/x
  3. Step 3: Cross multiply
    227,118.50x = 313,421 × 129,001.04
  4. Step 4: Simplify right side
    227,118.50x = 40,431,634,957.84
  5. Step 5: Solve for x
    x = 40,431,634,957.84/227,118.50
  6. Step 6: Final answer
    x = 178,020.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.