Home / 141,931.45-195,856.44-81,459.52

Finding the Fourth Proportional to 141,931.45, 195,856.44 and 81,459.52

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Solution

The fourth proportional to 141,931.45, 195,856.44 and 81,459.52 is: 112,408.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,931.45 : 195,856.44 = 81,459.52 : x
  2. Step 2: Convert to fraction form
    141,931.45/195,856.44 = 81,459.52/x
  3. Step 3: Cross multiply
    141,931.45x = 195,856.44 × 81,459.52
  4. Step 4: Simplify right side
    141,931.45x = 15,954,371,591.31
  5. Step 5: Solve for x
    x = 15,954,371,591.31/141,931.45
  6. Step 6: Final answer
    x = 112,408.99

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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.