Home / 149,870.24-206,818.51-81,885.75

Finding the Fourth Proportional to 149,870.24, 206,818.51 and 81,885.75

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Solution

The fourth proportional to 149,870.24, 206,818.51 and 81,885.75 is: 113,001.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,870.24 : 206,818.51 = 81,885.75 : x
  2. Step 2: Convert to fraction form
    149,870.24/206,818.51 = 81,885.75/x
  3. Step 3: Cross multiply
    149,870.24x = 206,818.51 × 81,885.75
  4. Step 4: Simplify right side
    149,870.24x = 16,935,488,805.23
  5. Step 5: Solve for x
    x = 16,935,488,805.23/149,870.24
  6. Step 6: Final answer
    x = 113,001.01

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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.