Home / 149,566.88-206,402.40-85,908.80

Finding the Fourth Proportional to 149,566.88, 206,402.40 and 85,908.80

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Solution

The fourth proportional to 149,566.88, 206,402.40 and 85,908.80 is: 118,554.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,566.88 : 206,402.40 = 85,908.80 : x
  2. Step 2: Convert to fraction form
    149,566.88/206,402.40 = 85,908.80/x
  3. Step 3: Cross multiply
    149,566.88x = 206,402.40 × 85,908.80
  4. Step 4: Simplify right side
    149,566.88x = 17,731,782,501.12
  5. Step 5: Solve for x
    x = 17,731,782,501.12/149,566.88
  6. Step 6: Final answer
    x = 118,554.20

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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.