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Finding the Fourth Proportional to 161,571.60, 242,356.98 and 43,242.95

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Solution

The fourth proportional to 161,571.60, 242,356.98 and 43,242.95 is: 64,864.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,571.60 : 242,356.98 = 43,242.95 : x
  2. Step 2: Convert to fraction form
    161,571.60/242,356.98 = 43,242.95/x
  3. Step 3: Cross multiply
    161,571.60x = 242,356.98 × 43,242.95
  4. Step 4: Simplify right side
    161,571.60x = 10,480,230,768.29
  5. Step 5: Solve for x
    x = 10,480,230,768.29/161,571.60
  6. Step 6: Final answer
    x = 64,864.31

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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.