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Finding the Fourth Proportional to 161,857.60, 242,527.20 and 102,587.20

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Solution

The fourth proportional to 161,857.60, 242,527.20 and 102,587.20 is: 153,716.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,857.60 : 242,527.20 = 102,587.20 : x
  2. Step 2: Convert to fraction form
    161,857.60/242,527.20 = 102,587.20/x
  3. Step 3: Cross multiply
    161,857.60x = 242,527.20 × 102,587.20
  4. Step 4: Simplify right side
    161,857.60x = 24,880,186,371.84
  5. Step 5: Solve for x
    x = 24,880,186,371.84/161,857.60
  6. Step 6: Final answer
    x = 153,716.52

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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.