Home / 142,946.50-197,137.05-89,236.48

Finding the Fourth Proportional to 142,946.50, 197,137.05 and 89,236.48

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Solution

The fourth proportional to 142,946.50, 197,137.05 and 89,236.48 is: 123,065.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,946.50 : 197,137.05 = 89,236.48 : x
  2. Step 2: Convert to fraction form
    142,946.50/197,137.05 = 89,236.48/x
  3. Step 3: Cross multiply
    142,946.50x = 197,137.05 × 89,236.48
  4. Step 4: Simplify right side
    142,946.50x = 17,591,816,419.58
  5. Step 5: Solve for x
    x = 17,591,816,419.58/142,946.50
  6. Step 6: Final answer
    x = 123,065.74

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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.