Home / 147,175.28-203,163.59-99,493.21

Finding the Fourth Proportional to 147,175.28, 203,163.59 and 99,493.21

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Solution

The fourth proportional to 147,175.28, 203,163.59 and 99,493.21 is: 137,342.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,175.28 : 203,163.59 = 99,493.21 : x
  2. Step 2: Convert to fraction form
    147,175.28/203,163.59 = 99,493.21/x
  3. Step 3: Cross multiply
    147,175.28x = 203,163.59 × 99,493.21
  4. Step 4: Simplify right side
    147,175.28x = 20,213,398,226.91
  5. Step 5: Solve for x
    x = 20,213,398,226.91/147,175.28
  6. Step 6: Final answer
    x = 137,342.35

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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.