Home / 142,538.73-196,690.08-85,166.62

Finding the Fourth Proportional to 142,538.73, 196,690.08 and 85,166.62

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Solution

The fourth proportional to 142,538.73, 196,690.08 and 85,166.62 is: 117,521.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,538.73 : 196,690.08 = 85,166.62 : x
  2. Step 2: Convert to fraction form
    142,538.73/196,690.08 = 85,166.62/x
  3. Step 3: Cross multiply
    142,538.73x = 196,690.08 × 85,166.62
  4. Step 4: Simplify right side
    142,538.73x = 16,751,429,128.78
  5. Step 5: Solve for x
    x = 16,751,429,128.78/142,538.73
  6. Step 6: Final answer
    x = 117,521.95

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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.