Home / 143,368.52-197,850-78,841.16

Finding the Fourth Proportional to 143,368.52, 197,850 and 78,841.16

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Solution

The fourth proportional to 143,368.52, 197,850 and 78,841.16 is: 108,801.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,368.52 : 197,850 = 78,841.16 : x
  2. Step 2: Convert to fraction form
    143,368.52/197,850 = 78,841.16/x
  3. Step 3: Cross multiply
    143,368.52x = 197,850 × 78,841.16
  4. Step 4: Simplify right side
    143,368.52x = 15,598,723,506
  5. Step 5: Solve for x
    x = 15,598,723,506/143,368.52
  6. Step 6: Final answer
    x = 108,801.59

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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.