Home / 143,395.47-197,884.50-79,732.71

Finding the Fourth Proportional to 143,395.47, 197,884.50 and 79,732.71

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Solution

The fourth proportional to 143,395.47, 197,884.50 and 79,732.71 is: 110,030.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,395.47 : 197,884.50 = 79,732.71 : x
  2. Step 2: Convert to fraction form
    143,395.47/197,884.50 = 79,732.71/x
  3. Step 3: Cross multiply
    143,395.47x = 197,884.50 × 79,732.71
  4. Step 4: Simplify right side
    143,395.47x = 15,777,867,452.00
  5. Step 5: Solve for x
    x = 15,777,867,452.00/143,395.47
  6. Step 6: Final answer
    x = 110,030.45

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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.