Home / 149,656.23-206,529.93-81,677.57

Finding the Fourth Proportional to 149,656.23, 206,529.93 and 81,677.57

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Solution

The fourth proportional to 149,656.23, 206,529.93 and 81,677.57 is: 112,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,656.23 : 206,529.93 = 81,677.57 : x
  2. Step 2: Convert to fraction form
    149,656.23/206,529.93 = 81,677.57/x
  3. Step 3: Cross multiply
    149,656.23x = 206,529.93 × 81,677.57
  4. Step 4: Simplify right side
    149,656.23x = 16,868,861,782.02
  5. Step 5: Solve for x
    x = 16,868,861,782.02/149,656.23
  6. Step 6: Final answer
    x = 112,717.40

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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.