Home / 133,218.59-183,923.64-85,555.94

Finding the Fourth Proportional to 133,218.59, 183,923.64 and 85,555.94

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Solution

The fourth proportional to 133,218.59, 183,923.64 and 85,555.94 is: 118,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,218.59 : 183,923.64 = 85,555.94 : x
  2. Step 2: Convert to fraction form
    133,218.59/183,923.64 = 85,555.94/x
  3. Step 3: Cross multiply
    133,218.59x = 183,923.64 × 85,555.94
  4. Step 4: Simplify right side
    133,218.59x = 15,735,758,988.80
  5. Step 5: Solve for x
    x = 15,735,758,988.80/133,218.59
  6. Step 6: Final answer
    x = 118,119.85

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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.