Home / 142,798.94-197,062.53-79,140.84

Finding the Fourth Proportional to 142,798.94, 197,062.53 and 79,140.84

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Solution

The fourth proportional to 142,798.94, 197,062.53 and 79,140.84 is: 109,214.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,798.94 : 197,062.53 = 79,140.84 : x
  2. Step 2: Convert to fraction form
    142,798.94/197,062.53 = 79,140.84/x
  3. Step 3: Cross multiply
    142,798.94x = 197,062.53 × 79,140.84
  4. Step 4: Simplify right side
    142,798.94x = 15,595,694,156.73
  5. Step 5: Solve for x
    x = 15,595,694,156.73/142,798.94
  6. Step 6: Final answer
    x = 109,214.36

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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.