Home / 142,772.60-197,027.35-79,111.46

Finding the Fourth Proportional to 142,772.60, 197,027.35 and 79,111.46

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Solution

The fourth proportional to 142,772.60, 197,027.35 and 79,111.46 is: 109,174.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,772.60 : 197,027.35 = 79,111.46 : x
  2. Step 2: Convert to fraction form
    142,772.60/197,027.35 = 79,111.46/x
  3. Step 3: Cross multiply
    142,772.60x = 197,027.35 × 79,111.46
  4. Step 4: Simplify right side
    142,772.60x = 15,587,120,135.52
  5. Step 5: Solve for x
    x = 15,587,120,135.52/142,772.60
  6. Step 6: Final answer
    x = 109,174.45

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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.