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Finding the Fourth Proportional to 162,628, 243,690.08 and 112,804.96

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Solution

The fourth proportional to 162,628, 243,690.08 and 112,804.96 is: 169,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,628 : 243,690.08 = 112,804.96 : x
  2. Step 2: Convert to fraction form
    162,628/243,690.08 = 112,804.96/x
  3. Step 3: Cross multiply
    162,628x = 243,690.08 × 112,804.96
  4. Step 4: Simplify right side
    162,628x = 27,489,449,726.80
  5. Step 5: Solve for x
    x = 27,489,449,726.80/162,628
  6. Step 6: Final answer
    x = 169,032.70

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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.