Home / 143,132.46-197,528.96-79,470.26

Finding the Fourth Proportional to 143,132.46, 197,528.96 and 79,470.26

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Solution

The fourth proportional to 143,132.46, 197,528.96 and 79,470.26 is: 109,672.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,132.46 : 197,528.96 = 79,470.26 : x
  2. Step 2: Convert to fraction form
    143,132.46/197,528.96 = 79,470.26/x
  3. Step 3: Cross multiply
    143,132.46x = 197,528.96 × 79,470.26
  4. Step 4: Simplify right side
    143,132.46x = 15,697,677,808.73
  5. Step 5: Solve for x
    x = 15,697,677,808.73/143,132.46
  6. Step 6: Final answer
    x = 109,672.38

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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.