Home / 149,312.05-206,047.53-81,330.23

Finding the Fourth Proportional to 149,312.05, 206,047.53 and 81,330.23

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Solution

The fourth proportional to 149,312.05, 206,047.53 and 81,330.23 is: 112,234.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,312.05 : 206,047.53 = 81,330.23 : x
  2. Step 2: Convert to fraction form
    149,312.05/206,047.53 = 81,330.23/x
  3. Step 3: Cross multiply
    149,312.05x = 206,047.53 × 81,330.23
  4. Step 4: Simplify right side
    149,312.05x = 16,757,893,520.95
  5. Step 5: Solve for x
    x = 16,757,893,520.95/149,312.05
  6. Step 6: Final answer
    x = 112,234.03

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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.