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Finding the Fourth Proportional to 162,105.40, 242,574.90 and 109,617.40

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Solution

The fourth proportional to 162,105.40, 242,574.90 and 109,617.40 is: 164,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,105.40 : 242,574.90 = 109,617.40 : x
  2. Step 2: Convert to fraction form
    162,105.40/242,574.90 = 109,617.40/x
  3. Step 3: Cross multiply
    162,105.40x = 242,574.90 × 109,617.40
  4. Step 4: Simplify right side
    162,105.40x = 26,590,429,843.26
  5. Step 5: Solve for x
    x = 26,590,429,843.26/162,105.40
  6. Step 6: Final answer
    x = 164,031.73

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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.