Home / 141,931.19-195,856.09-81,459.27

Finding the Fourth Proportional to 141,931.19, 195,856.09 and 81,459.27

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Solution

The fourth proportional to 141,931.19, 195,856.09 and 81,459.27 is: 112,408.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,931.19 : 195,856.09 = 81,459.27 : x
  2. Step 2: Convert to fraction form
    141,931.19/195,856.09 = 81,459.27/x
  3. Step 3: Cross multiply
    141,931.19x = 195,856.09 × 81,459.27
  4. Step 4: Simplify right side
    141,931.19x = 15,954,293,912.81
  5. Step 5: Solve for x
    x = 15,954,293,912.81/141,931.19
  6. Step 6: Final answer
    x = 112,408.65

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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.