Home / 149,569.86-206,410.30-81,587.98

Finding the Fourth Proportional to 149,569.86, 206,410.30 and 81,587.98

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Solution

The fourth proportional to 149,569.86, 206,410.30 and 81,587.98 is: 112,593.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,569.86 : 206,410.30 = 81,587.98 : x
  2. Step 2: Convert to fraction form
    149,569.86/206,410.30 = 81,587.98/x
  3. Step 3: Cross multiply
    149,569.86x = 206,410.30 × 81,587.98
  4. Step 4: Simplify right side
    149,569.86x = 16,840,599,428.19
  5. Step 5: Solve for x
    x = 16,840,599,428.19/149,569.86
  6. Step 6: Final answer
    x = 112,593.54

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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.