Home / 162,138.06-242,708.58-138,223.14

Finding the Fourth Proportional to 162,138.06, 242,708.58 and 138,223.14

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Solution

The fourth proportional to 162,138.06, 242,708.58 and 138,223.14 is: 206,909.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,138.06 : 242,708.58 = 138,223.14 : x
  2. Step 2: Convert to fraction form
    162,138.06/242,708.58 = 138,223.14/x
  3. Step 3: Cross multiply
    162,138.06x = 242,708.58 × 138,223.14
  4. Step 4: Simplify right side
    162,138.06x = 33,547,942,032.54
  5. Step 5: Solve for x
    x = 33,547,942,032.54/162,138.06
  6. Step 6: Final answer
    x = 206,909.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.