Home / 131,519.28-181,496.25-74,931.06

Finding the Fourth Proportional to 131,519.28, 181,496.25 and 74,931.06

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Solution

The fourth proportional to 131,519.28, 181,496.25 and 74,931.06 is: 103,404.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,519.28 : 181,496.25 = 74,931.06 : x
  2. Step 2: Convert to fraction form
    131,519.28/181,496.25 = 74,931.06/x
  3. Step 3: Cross multiply
    131,519.28x = 181,496.25 × 74,931.06
  4. Step 4: Simplify right side
    131,519.28x = 13,599,706,398.53
  5. Step 5: Solve for x
    x = 13,599,706,398.53/131,519.28
  6. Step 6: Final answer
    x = 103,404.66

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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.