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Finding the Fourth Proportional to 149,812.60, 224,816.10 and 86,632.60

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Solution

The fourth proportional to 149,812.60, 224,816.10 and 86,632.60 is: 130,005.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,812.60 : 224,816.10 = 86,632.60 : x
  2. Step 2: Convert to fraction form
    149,812.60/224,816.10 = 86,632.60/x
  3. Step 3: Cross multiply
    149,812.60x = 224,816.10 × 86,632.60
  4. Step 4: Simplify right side
    149,812.60x = 19,476,403,264.86
  5. Step 5: Solve for x
    x = 19,476,403,264.86/149,812.60
  6. Step 6: Final answer
    x = 130,005.11

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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.