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Finding the Fourth Proportional to 127,419.60, 175,863.42 and 84,399.60

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Solution

The fourth proportional to 127,419.60, 175,863.42 and 84,399.60 is: 116,487.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,419.60 : 175,863.42 = 84,399.60 : x
  2. Step 2: Convert to fraction form
    127,419.60/175,863.42 = 84,399.60/x
  3. Step 3: Cross multiply
    127,419.60x = 175,863.42 × 84,399.60
  4. Step 4: Simplify right side
    127,419.60x = 14,842,802,302.63
  5. Step 5: Solve for x
    x = 14,842,802,302.63/127,419.60
  6. Step 6: Final answer
    x = 116,487.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.