Home / 149,359.05-206,191.67-101,215.32

Finding the Fourth Proportional to 149,359.05, 206,191.67 and 101,215.32

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Solution

The fourth proportional to 149,359.05, 206,191.67 and 101,215.32 is: 139,728.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,359.05 : 206,191.67 = 101,215.32 : x
  2. Step 2: Convert to fraction form
    149,359.05/206,191.67 = 101,215.32/x
  3. Step 3: Cross multiply
    149,359.05x = 206,191.67 × 101,215.32
  4. Step 4: Simplify right side
    149,359.05x = 20,869,755,860.38
  5. Step 5: Solve for x
    x = 20,869,755,860.38/149,359.05
  6. Step 6: Final answer
    x = 139,728.77

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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.