Home / 143,210.82-197,639.45-79,548.17

Finding the Fourth Proportional to 143,210.82, 197,639.45 and 79,548.17

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Solution

The fourth proportional to 143,210.82, 197,639.45 and 79,548.17 is: 109,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,210.82 : 197,639.45 = 79,548.17 : x
  2. Step 2: Convert to fraction form
    143,210.82/197,639.45 = 79,548.17/x
  3. Step 3: Cross multiply
    143,210.82x = 197,639.45 × 79,548.17
  4. Step 4: Simplify right side
    143,210.82x = 15,721,855,181.37
  5. Step 5: Solve for x
    x = 15,721,855,181.37/143,210.82
  6. Step 6: Final answer
    x = 109,781.20

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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.