Home / 143,286.01-197,684.28-85,943.89

Finding the Fourth Proportional to 143,286.01, 197,684.28 and 85,943.89

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Solution

The fourth proportional to 143,286.01, 197,684.28 and 85,943.89 is: 118,572.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,286.01 : 197,684.28 = 85,943.89 : x
  2. Step 2: Convert to fraction form
    143,286.01/197,684.28 = 85,943.89/x
  3. Step 3: Cross multiply
    143,286.01x = 197,684.28 × 85,943.89
  4. Step 4: Simplify right side
    143,286.01x = 16,989,756,262.15
  5. Step 5: Solve for x
    x = 16,989,756,262.15/143,286.01
  6. Step 6: Final answer
    x = 118,572.33

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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.