Home / 149,437.49-206,222.42-81,454.46

Finding the Fourth Proportional to 149,437.49, 206,222.42 and 81,454.46

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Solution

The fourth proportional to 149,437.49, 206,222.42 and 81,454.46 is: 112,406.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,437.49 : 206,222.42 = 81,454.46 : x
  2. Step 2: Convert to fraction form
    149,437.49/206,222.42 = 81,454.46/x
  3. Step 3: Cross multiply
    149,437.49x = 206,222.42 × 81,454.46
  4. Step 4: Simplify right side
    149,437.49x = 16,797,736,580.19
  5. Step 5: Solve for x
    x = 16,797,736,580.19/149,437.49
  6. Step 6: Final answer
    x = 112,406.44

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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.