Home / 99,434.62-137,220.36-54,112.96

Finding the Fourth Proportional to 99,434.62, 137,220.36 and 54,112.96

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Solution

The fourth proportional to 99,434.62, 137,220.36 and 54,112.96 is: 74,676.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,434.62 : 137,220.36 = 54,112.96 : x
  2. Step 2: Convert to fraction form
    99,434.62/137,220.36 = 54,112.96/x
  3. Step 3: Cross multiply
    99,434.62x = 137,220.36 × 54,112.96
  4. Step 4: Simplify right side
    99,434.62x = 7,425,399,851.87
  5. Step 5: Solve for x
    x = 7,425,399,851.87/99,434.62
  6. Step 6: Final answer
    x = 74,676.20

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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.