Home / 143,842.60-198,502.86-80,178.94

Finding the Fourth Proportional to 143,842.60, 198,502.86 and 80,178.94

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Solution

The fourth proportional to 143,842.60, 198,502.86 and 80,178.94 is: 110,646.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,842.60 : 198,502.86 = 80,178.94 : x
  2. Step 2: Convert to fraction form
    143,842.60/198,502.86 = 80,178.94/x
  3. Step 3: Cross multiply
    143,842.60x = 198,502.86 × 80,178.94
  4. Step 4: Simplify right side
    143,842.60x = 15,915,748,901.77
  5. Step 5: Solve for x
    x = 15,915,748,901.77/143,842.60
  6. Step 6: Final answer
    x = 110,646.98

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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.