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Finding the Fourth Proportional to 162,174.40, 242,678.40 and 109,686.40

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Solution

The fourth proportional to 162,174.40, 242,678.40 and 109,686.40 is: 164,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,174.40 : 242,678.40 = 109,686.40 : x
  2. Step 2: Convert to fraction form
    162,174.40/242,678.40 = 109,686.40/x
  3. Step 3: Cross multiply
    162,174.40x = 242,678.40 × 109,686.40
  4. Step 4: Simplify right side
    162,174.40x = 26,618,520,053.76
  5. Step 5: Solve for x
    x = 26,618,520,053.76/162,174.40
  6. Step 6: Final answer
    x = 164,135.15

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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.