Home / 142,928.83-197,235.03-79,265.26

Finding the Fourth Proportional to 142,928.83, 197,235.03 and 79,265.26

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Solution

The fourth proportional to 142,928.83, 197,235.03 and 79,265.26 is: 109,382.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,928.83 : 197,235.03 = 79,265.26 : x
  2. Step 2: Convert to fraction form
    142,928.83/197,235.03 = 79,265.26/x
  3. Step 3: Cross multiply
    142,928.83x = 197,235.03 × 79,265.26
  4. Step 4: Simplify right side
    142,928.83x = 15,633,885,934.06
  5. Step 5: Solve for x
    x = 15,633,885,934.06/142,928.83
  6. Step 6: Final answer
    x = 109,382.31

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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.