Home / 142,772.77-197,023.49-79,110.01

Finding the Fourth Proportional to 142,772.77, 197,023.49 and 79,110.01

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Solution

The fourth proportional to 142,772.77, 197,023.49 and 79,110.01 is: 109,170.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,772.77 : 197,023.49 = 79,110.01 : x
  2. Step 2: Convert to fraction form
    142,772.77/197,023.49 = 79,110.01/x
  3. Step 3: Cross multiply
    142,772.77x = 197,023.49 × 79,110.01
  4. Step 4: Simplify right side
    142,772.77x = 15,586,529,868.58
  5. Step 5: Solve for x
    x = 15,586,529,868.58/142,772.77
  6. Step 6: Final answer
    x = 109,170.19

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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.