Home / 99,469.09-137,269.11-54,148.39

Finding the Fourth Proportional to 99,469.09, 137,269.11 and 54,148.39

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Solution

The fourth proportional to 99,469.09, 137,269.11 and 54,148.39 is: 74,725.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,469.09 : 137,269.11 = 54,148.39 : x
  2. Step 2: Convert to fraction form
    99,469.09/137,269.11 = 54,148.39/x
  3. Step 3: Cross multiply
    99,469.09x = 137,269.11 × 54,148.39
  4. Step 4: Simplify right side
    99,469.09x = 7,432,901,303.23
  5. Step 5: Solve for x
    x = 7,432,901,303.23/99,469.09
  6. Step 6: Final answer
    x = 74,725.74

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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.