Home / 143,215.36-197,615.24-82,774.35

Finding the Fourth Proportional to 143,215.36, 197,615.24 and 82,774.35

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Solution

The fourth proportional to 143,215.36, 197,615.24 and 82,774.35 is: 114,215.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,215.36 : 197,615.24 = 82,774.35 : x
  2. Step 2: Convert to fraction form
    143,215.36/197,615.24 = 82,774.35/x
  3. Step 3: Cross multiply
    143,215.36x = 197,615.24 × 82,774.35
  4. Step 4: Simplify right side
    143,215.36x = 16,357,473,248.03
  5. Step 5: Solve for x
    x = 16,357,473,248.03/143,215.36
  6. Step 6: Final answer
    x = 114,215.92

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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.