Home / 143,358.17-197,864.38-90,936.24

Finding the Fourth Proportional to 143,358.17, 197,864.38 and 90,936.24

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Solution

The fourth proportional to 143,358.17, 197,864.38 and 90,936.24 is: 125,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,358.17 : 197,864.38 = 90,936.24 : x
  2. Step 2: Convert to fraction form
    143,358.17/197,864.38 = 90,936.24/x
  3. Step 3: Cross multiply
    143,358.17x = 197,864.38 × 90,936.24
  4. Step 4: Simplify right side
    143,358.17x = 17,993,041,777.80
  5. Step 5: Solve for x
    x = 17,993,041,777.80/143,358.17
  6. Step 6: Final answer
    x = 125,511.10

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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.