Home / 99,494.46-137,297.76-54,172.31

Finding the Fourth Proportional to 99,494.46, 137,297.76 and 54,172.31

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Solution

The fourth proportional to 99,494.46, 137,297.76 and 54,172.31 is: 74,755.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,494.46 : 137,297.76 = 54,172.31 : x
  2. Step 2: Convert to fraction form
    99,494.46/137,297.76 = 54,172.31/x
  3. Step 3: Cross multiply
    99,494.46x = 137,297.76 × 54,172.31
  4. Step 4: Simplify right side
    99,494.46x = 7,437,736,130.54
  5. Step 5: Solve for x
    x = 7,437,736,130.54/99,494.46
  6. Step 6: Final answer
    x = 74,755.28

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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.