Home / 161,320.57-242,030.09-82,490.17

Finding the Fourth Proportional to 161,320.57, 242,030.09 and 82,490.17

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Solution

The fourth proportional to 161,320.57, 242,030.09 and 82,490.17 is: 123,760.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,320.57 : 242,030.09 = 82,490.17 : x
  2. Step 2: Convert to fraction form
    161,320.57/242,030.09 = 82,490.17/x
  3. Step 3: Cross multiply
    161,320.57x = 242,030.09 × 82,490.17
  4. Step 4: Simplify right side
    161,320.57x = 19,965,103,269.22
  5. Step 5: Solve for x
    x = 19,965,103,269.22/161,320.57
  6. Step 6: Final answer
    x = 123,760.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.