Home / 106,186.38-159,278.30-42,989.38

Finding the Fourth Proportional to 106,186.38, 159,278.30 and 42,989.38

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Solution

The fourth proportional to 106,186.38, 159,278.30 and 42,989.38 is: 64,483.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,186.38 : 159,278.30 = 42,989.38 : x
  2. Step 2: Convert to fraction form
    106,186.38/159,278.30 = 42,989.38/x
  3. Step 3: Cross multiply
    106,186.38x = 159,278.30 × 42,989.38
  4. Step 4: Simplify right side
    106,186.38x = 6,847,275,364.45
  5. Step 5: Solve for x
    x = 6,847,275,364.45/106,186.38
  6. Step 6: Final answer
    x = 64,483.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.