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Finding the Fourth Proportional to 161,907.10, 242,569.05 and 99,504.70

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Solution

The fourth proportional to 161,907.10, 242,569.05 and 99,504.70 is: 149,077.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,907.10 : 242,569.05 = 99,504.70 : x
  2. Step 2: Convert to fraction form
    161,907.10/242,569.05 = 99,504.70/x
  3. Step 3: Cross multiply
    161,907.10x = 242,569.05 × 99,504.70
  4. Step 4: Simplify right side
    161,907.10x = 24,136,760,549.54
  5. Step 5: Solve for x
    x = 24,136,760,549.54/161,907.10
  6. Step 6: Final answer
    x = 149,077.84

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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.