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Finding the Fourth Proportional to 162,790.80, 243,858.15 and 109,646.70

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Solution

The fourth proportional to 162,790.80, 243,858.15 and 109,646.70 is: 164,249.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,790.80 : 243,858.15 = 109,646.70 : x
  2. Step 2: Convert to fraction form
    162,790.80/243,858.15 = 109,646.70/x
  3. Step 3: Cross multiply
    162,790.80x = 243,858.15 × 109,646.70
  4. Step 4: Simplify right side
    162,790.80x = 26,738,241,415.61
  5. Step 5: Solve for x
    x = 26,738,241,415.61/162,790.80
  6. Step 6: Final answer
    x = 164,249.09

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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.