Home / 133,337.00-183,989.98-78,890.83

Finding the Fourth Proportional to 133,337.00, 183,989.98 and 78,890.83

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Solution

The fourth proportional to 133,337.00, 183,989.98 and 78,890.83 is: 108,860.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,337.00 : 183,989.98 = 78,890.83 : x
  2. Step 2: Convert to fraction form
    133,337.00/183,989.98 = 78,890.83/x
  3. Step 3: Cross multiply
    133,337.00x = 183,989.98 × 78,890.83
  4. Step 4: Simplify right side
    133,337.00x = 14,515,123,129.35
  5. Step 5: Solve for x
    x = 14,515,123,129.35/133,337.00
  6. Step 6: Final answer
    x = 108,860.43

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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.