Home / 149,717.19-206,612.86-81,737.03

Finding the Fourth Proportional to 149,717.19, 206,612.86 and 81,737.03

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Solution

The fourth proportional to 149,717.19, 206,612.86 and 81,737.03 is: 112,798.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,717.19 : 206,612.86 = 81,737.03 : x
  2. Step 2: Convert to fraction form
    149,717.19/206,612.86 = 81,737.03/x
  3. Step 3: Cross multiply
    149,717.19x = 206,612.86 × 81,737.03
  4. Step 4: Simplify right side
    149,717.19x = 16,887,921,656.82
  5. Step 5: Solve for x
    x = 16,887,921,656.82/149,717.19
  6. Step 6: Final answer
    x = 112,798.81

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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.