Home / 143,003.30-197,344.59-79,340.95

Finding the Fourth Proportional to 143,003.30, 197,344.59 and 79,340.95

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Solution

The fourth proportional to 143,003.30, 197,344.59 and 79,340.95 is: 109,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,003.30 : 197,344.59 = 79,340.95 : x
  2. Step 2: Convert to fraction form
    143,003.30/197,344.59 = 79,340.95/x
  3. Step 3: Cross multiply
    143,003.30x = 197,344.59 × 79,340.95
  4. Step 4: Simplify right side
    143,003.30x = 15,657,505,864.53
  5. Step 5: Solve for x
    x = 15,657,505,864.53/143,003.30
  6. Step 6: Final answer
    x = 109,490.52

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1.5x scale

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.