Home / 137,351.61-189,467.83-79,984.17

Finding the Fourth Proportional to 137,351.61, 189,467.83 and 79,984.17

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Solution

The fourth proportional to 137,351.61, 189,467.83 and 79,984.17 is: 110,333.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,351.61 : 189,467.83 = 79,984.17 : x
  2. Step 2: Convert to fraction form
    137,351.61/189,467.83 = 79,984.17/x
  3. Step 3: Cross multiply
    137,351.61x = 189,467.83 × 79,984.17
  4. Step 4: Simplify right side
    137,351.61x = 15,154,427,124.25
  5. Step 5: Solve for x
    x = 15,154,427,124.25/137,351.61
  6. Step 6: Final answer
    x = 110,333.09

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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.