Home / 143,209.67-197,603.28-82,758.15

Finding the Fourth Proportional to 143,209.67, 197,603.28 and 82,758.15

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Solution

The fourth proportional to 143,209.67, 197,603.28 and 82,758.15 is: 114,191.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,209.67 : 197,603.28 = 82,758.15 : x
  2. Step 2: Convert to fraction form
    143,209.67/197,603.28 = 82,758.15/x
  3. Step 3: Cross multiply
    143,209.67x = 197,603.28 × 82,758.15
  4. Step 4: Simplify right side
    143,209.67x = 16,353,281,886.73
  5. Step 5: Solve for x
    x = 16,353,281,886.73/143,209.67
  6. Step 6: Final answer
    x = 114,191.19

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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.