Home / 142,947.50-197,138.43-89,237.48

Finding the Fourth Proportional to 142,947.50, 197,138.43 and 89,237.48

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Solution

The fourth proportional to 142,947.50, 197,138.43 and 89,237.48 is: 123,067.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,947.50 : 197,138.43 = 89,237.48 : x
  2. Step 2: Convert to fraction form
    142,947.50/197,138.43 = 89,237.48/x
  3. Step 3: Cross multiply
    142,947.50x = 197,138.43 × 89,237.48
  4. Step 4: Simplify right side
    142,947.50x = 17,592,136,704.36
  5. Step 5: Solve for x
    x = 17,592,136,704.36/142,947.50
  6. Step 6: Final answer
    x = 123,067.12

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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.