Home / 99,618.21-137,472.26-54,296.20

Finding the Fourth Proportional to 99,618.21, 137,472.26 and 54,296.20

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Solution

The fourth proportional to 99,618.21, 137,472.26 and 54,296.20 is: 74,928.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,618.21 : 137,472.26 = 54,296.20 : x
  2. Step 2: Convert to fraction form
    99,618.21/137,472.26 = 54,296.20/x
  3. Step 3: Cross multiply
    99,618.21x = 137,472.26 × 54,296.20
  4. Step 4: Simplify right side
    99,618.21x = 7,464,220,837.13
  5. Step 5: Solve for x
    x = 7,464,220,837.13/99,618.21
  6. Step 6: Final answer
    x = 74,928.27

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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.