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Finding the Fourth Proportional to 130,259.20, 195,097.20 and 112,763.20

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Solution

The fourth proportional to 130,259.20, 195,097.20 and 112,763.20 is: 168,892.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,259.20 : 195,097.20 = 112,763.20 : x
  2. Step 2: Convert to fraction form
    130,259.20/195,097.20 = 112,763.20/x
  3. Step 3: Cross multiply
    130,259.20x = 195,097.20 × 112,763.20
  4. Step 4: Simplify right side
    130,259.20x = 21,999,784,583.04
  5. Step 5: Solve for x
    x = 21,999,784,583.04/130,259.20
  6. Step 6: Final answer
    x = 168,892.37

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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.