Home / 149,570.86-206,411.68-81,588.98

Finding the Fourth Proportional to 149,570.86, 206,411.68 and 81,588.98

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Solution

The fourth proportional to 149,570.86, 206,411.68 and 81,588.98 is: 112,594.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,570.86 : 206,411.68 = 81,588.98 : x
  2. Step 2: Convert to fraction form
    149,570.86/206,411.68 = 81,588.98/x
  3. Step 3: Cross multiply
    149,570.86x = 206,411.68 × 81,588.98
  4. Step 4: Simplify right side
    149,570.86x = 16,840,918,431.29
  5. Step 5: Solve for x
    x = 16,840,918,431.29/149,570.86
  6. Step 6: Final answer
    x = 112,594.92

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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.