Home / 143,132.96-197,529.64-79,470.76

Finding the Fourth Proportional to 143,132.96, 197,529.64 and 79,470.76

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Solution

The fourth proportional to 143,132.96, 197,529.64 and 79,470.76 is: 109,673.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,132.96 : 197,529.64 = 79,470.76 : x
  2. Step 2: Convert to fraction form
    143,132.96/197,529.64 = 79,470.76/x
  3. Step 3: Cross multiply
    143,132.96x = 197,529.64 × 79,470.76
  4. Step 4: Simplify right side
    143,132.96x = 15,697,830,613.33
  5. Step 5: Solve for x
    x = 15,697,830,613.33/143,132.96
  6. Step 6: Final answer
    x = 109,673.07

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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.