Home / 133,073.96-183,701.94-87,778.76

Finding the Fourth Proportional to 133,073.96, 183,701.94 and 87,778.76

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Solution

The fourth proportional to 133,073.96, 183,701.94 and 87,778.76 is: 121,174.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,073.96 : 183,701.94 = 87,778.76 : x
  2. Step 2: Convert to fraction form
    133,073.96/183,701.94 = 87,778.76/x
  3. Step 3: Cross multiply
    133,073.96x = 183,701.94 × 87,778.76
  4. Step 4: Simplify right side
    133,073.96x = 16,125,128,502.79
  5. Step 5: Solve for x
    x = 16,125,128,502.79/133,073.96
  6. Step 6: Final answer
    x = 121,174.18

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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.