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Finding the Fourth Proportional to 130,809.60, 196,214.40 and 67,629.60

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Solution

The fourth proportional to 130,809.60, 196,214.40 and 67,629.60 is: 101,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,809.60 : 196,214.40 = 67,629.60 : x
  2. Step 2: Convert to fraction form
    130,809.60/196,214.40 = 67,629.60/x
  3. Step 3: Cross multiply
    130,809.60x = 196,214.40 × 67,629.60
  4. Step 4: Simplify right side
    130,809.60x = 13,269,901,386.24
  5. Step 5: Solve for x
    x = 13,269,901,386.24/130,809.60
  6. Step 6: Final answer
    x = 101,444.40

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1.5x scale

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.