Home / 149,894.07-206,856.52-81,913.91

Finding the Fourth Proportional to 149,894.07, 206,856.52 and 81,913.91

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Solution

The fourth proportional to 149,894.07, 206,856.52 and 81,913.91 is: 113,042.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,894.07 : 206,856.52 = 81,913.91 : x
  2. Step 2: Convert to fraction form
    149,894.07/206,856.52 = 81,913.91/x
  3. Step 3: Cross multiply
    149,894.07x = 206,856.52 × 81,913.91
  4. Step 4: Simplify right side
    149,894.07x = 16,944,426,362.19
  5. Step 5: Solve for x
    x = 16,944,426,362.19/149,894.07
  6. Step 6: Final answer
    x = 113,042.67

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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.