Home / 142,371.99-196,440.71-85,000.14

Finding the Fourth Proportional to 142,371.99, 196,440.71 and 85,000.14

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Solution

The fourth proportional to 142,371.99, 196,440.71 and 85,000.14 is: 117,280.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,371.99 : 196,440.71 = 85,000.14 : x
  2. Step 2: Convert to fraction form
    142,371.99/196,440.71 = 85,000.14/x
  3. Step 3: Cross multiply
    142,371.99x = 196,440.71 × 85,000.14
  4. Step 4: Simplify right side
    142,371.99x = 16,697,487,426.70
  5. Step 5: Solve for x
    x = 16,697,487,426.70/142,371.99
  6. Step 6: Final answer
    x = 117,280.71

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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.