Home / 143,011.20-197,356.32-79,350.24

Finding the Fourth Proportional to 143,011.20, 197,356.32 and 79,350.24

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Solution

The fourth proportional to 143,011.20, 197,356.32 and 79,350.24 is: 109,503.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,011.20 : 197,356.32 = 79,350.24 : x
  2. Step 2: Convert to fraction form
    143,011.20/197,356.32 = 79,350.24/x
  3. Step 3: Cross multiply
    143,011.20x = 197,356.32 × 79,350.24
  4. Step 4: Simplify right side
    143,011.20x = 15,660,271,357.52
  5. Step 5: Solve for x
    x = 15,660,271,357.52/143,011.20
  6. Step 6: Final answer
    x = 109,503.81

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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.