Home / 99,421.61-137,202.44-54,099.95

Finding the Fourth Proportional to 99,421.61, 137,202.44 and 54,099.95

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Solution

The fourth proportional to 99,421.61, 137,202.44 and 54,099.95 is: 74,658.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,421.61 : 137,202.44 = 54,099.95 : x
  2. Step 2: Convert to fraction form
    99,421.61/137,202.44 = 54,099.95/x
  3. Step 3: Cross multiply
    99,421.61x = 137,202.44 × 54,099.95
  4. Step 4: Simplify right side
    99,421.61x = 7,422,644,187.37
  5. Step 5: Solve for x
    x = 7,422,644,187.37/99,421.61
  6. Step 6: Final answer
    x = 74,658.26

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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.