Home / 239,127.09-329,984.74-137,079.39

Finding the Fourth Proportional to 239,127.09, 329,984.74 and 137,079.39

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Solution

The fourth proportional to 239,127.09, 329,984.74 and 137,079.39 is: 189,163.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,127.09 : 329,984.74 = 137,079.39 : x
  2. Step 2: Convert to fraction form
    239,127.09/329,984.74 = 137,079.39/x
  3. Step 3: Cross multiply
    239,127.09x = 329,984.74 × 137,079.39
  4. Step 4: Simplify right side
    239,127.09x = 45,234,105,650.06
  5. Step 5: Solve for x
    x = 45,234,105,650.06/239,127.09
  6. Step 6: Final answer
    x = 189,163.45

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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.