Home / 149,447.32-206,235.95-81,464.29

Finding the Fourth Proportional to 149,447.32, 206,235.95 and 81,464.29

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Solution

The fourth proportional to 149,447.32, 206,235.95 and 81,464.29 is: 112,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,447.32 : 206,235.95 = 81,464.29 : x
  2. Step 2: Convert to fraction form
    149,447.32/206,235.95 = 81,464.29/x
  3. Step 3: Cross multiply
    149,447.32x = 206,235.95 × 81,464.29
  4. Step 4: Simplify right side
    149,447.32x = 16,800,865,239.23
  5. Step 5: Solve for x
    x = 16,800,865,239.23/149,447.32
  6. Step 6: Final answer
    x = 112,419.98

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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.