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Finding the Fourth Proportional to 145,752.48, 218,134.90 and 89,628.14

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Solution

The fourth proportional to 145,752.48, 218,134.90 and 89,628.14 is: 134,138.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,752.48 : 218,134.90 = 89,628.14 : x
  2. Step 2: Convert to fraction form
    145,752.48/218,134.90 = 89,628.14/x
  3. Step 3: Cross multiply
    145,752.48x = 218,134.90 × 89,628.14
  4. Step 4: Simplify right side
    145,752.48x = 19,551,025,356.09
  5. Step 5: Solve for x
    x = 19,551,025,356.09/145,752.48
  6. Step 6: Final answer
    x = 134,138.54

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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.