Home / 131,821.06-181,926.05-75,240.94

Finding the Fourth Proportional to 131,821.06, 181,926.05 and 75,240.94

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Solution

The fourth proportional to 131,821.06, 181,926.05 and 75,240.94 is: 103,839.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,821.06 : 181,926.05 = 75,240.94 : x
  2. Step 2: Convert to fraction form
    131,821.06/181,926.05 = 75,240.94/x
  3. Step 3: Cross multiply
    131,821.06x = 181,926.05 × 75,240.94
  4. Step 4: Simplify right side
    131,821.06x = 13,688,287,012.49
  5. Step 5: Solve for x
    x = 13,688,287,012.49/131,821.06
  6. Step 6: Final answer
    x = 103,839.91

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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.