Home / 142,887.92-197,197.20-79,246.24

Finding the Fourth Proportional to 142,887.92, 197,197.20 and 79,246.24

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Solution

The fourth proportional to 142,887.92, 197,197.20 and 79,246.24 is: 109,366.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,887.92 : 197,197.20 = 79,246.24 : x
  2. Step 2: Convert to fraction form
    142,887.92/197,197.20 = 79,246.24/x
  3. Step 3: Cross multiply
    142,887.92x = 197,197.20 × 79,246.24
  4. Step 4: Simplify right side
    142,887.92x = 15,627,136,638.53
  5. Step 5: Solve for x
    x = 15,627,136,638.53/142,887.92
  6. Step 6: Final answer
    x = 109,366.39

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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.