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Finding the Fourth Proportional to 162,006.80, 242,682.15 and 91,804.10

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Solution

The fourth proportional to 162,006.80, 242,682.15 and 91,804.10 is: 137,520.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,006.80 : 242,682.15 = 91,804.10 : x
  2. Step 2: Convert to fraction form
    162,006.80/242,682.15 = 91,804.10/x
  3. Step 3: Cross multiply
    162,006.80x = 242,682.15 × 91,804.10
  4. Step 4: Simplify right side
    162,006.80x = 22,279,216,366.82
  5. Step 5: Solve for x
    x = 22,279,216,366.82/162,006.80
  6. Step 6: Final answer
    x = 137,520.25

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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.