Home / 131,786.29-181,878.12-75,206.17

Finding the Fourth Proportional to 131,786.29, 181,878.12 and 75,206.17

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Solution

The fourth proportional to 131,786.29, 181,878.12 and 75,206.17 is: 103,791.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,786.29 : 181,878.12 = 75,206.17 : x
  2. Step 2: Convert to fraction form
    131,786.29/181,878.12 = 75,206.17/x
  3. Step 3: Cross multiply
    131,786.29x = 181,878.12 × 75,206.17
  4. Step 4: Simplify right side
    131,786.29x = 13,678,356,812.00
  5. Step 5: Solve for x
    x = 13,678,356,812.00/131,786.29
  6. Step 6: Final answer
    x = 103,791.96

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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.