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Finding the Fourth Proportional to 161,907.40, 242,861.10 and 102,858.40

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Solution

The fourth proportional to 161,907.40, 242,861.10 and 102,858.40 is: 154,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,907.40 : 242,861.10 = 102,858.40 : x
  2. Step 2: Convert to fraction form
    161,907.40/242,861.10 = 102,858.40/x
  3. Step 3: Cross multiply
    161,907.40x = 242,861.10 × 102,858.40
  4. Step 4: Simplify right side
    161,907.40x = 24,980,304,168.24
  5. Step 5: Solve for x
    x = 24,980,304,168.24/161,907.40
  6. Step 6: Final answer
    x = 154,287.60

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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.