Home / 131,504.09-181,472.02-74,142.92

Finding the Fourth Proportional to 131,504.09, 181,472.02 and 74,142.92

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Solution

The fourth proportional to 131,504.09, 181,472.02 and 74,142.92 is: 102,315.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,504.09 : 181,472.02 = 74,142.92 : x
  2. Step 2: Convert to fraction form
    131,504.09/181,472.02 = 74,142.92/x
  3. Step 3: Cross multiply
    131,504.09x = 181,472.02 × 74,142.92
  4. Step 4: Simplify right side
    131,504.09x = 13,454,865,427.56
  5. Step 5: Solve for x
    x = 13,454,865,427.56/131,504.09
  6. Step 6: Final answer
    x = 102,315.18

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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.