Home / 131,506.09-181,474.78-74,144.92

Finding the Fourth Proportional to 131,506.09, 181,474.78 and 74,144.92

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Solution

The fourth proportional to 131,506.09, 181,474.78 and 74,144.92 is: 102,317.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,506.09 : 181,474.78 = 74,144.92 : x
  2. Step 2: Convert to fraction form
    131,506.09/181,474.78 = 74,144.92/x
  3. Step 3: Cross multiply
    131,506.09x = 181,474.78 × 74,144.92
  4. Step 4: Simplify right side
    131,506.09x = 13,455,433,045.12
  5. Step 5: Solve for x
    x = 13,455,433,045.12/131,506.09
  6. Step 6: Final answer
    x = 102,317.95

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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.