Home / 140,681.25-211,073.72-74,118.69

Finding the Fourth Proportional to 140,681.25, 211,073.72 and 74,118.69

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Solution

The fourth proportional to 140,681.25, 211,073.72 and 74,118.69 is: 111,205.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,681.25 : 211,073.72 = 74,118.69 : x
  2. Step 2: Convert to fraction form
    140,681.25/211,073.72 = 74,118.69/x
  3. Step 3: Cross multiply
    140,681.25x = 211,073.72 × 74,118.69
  4. Step 4: Simplify right side
    140,681.25x = 15,644,507,249.23
  5. Step 5: Solve for x
    x = 15,644,507,249.23/140,681.25
  6. Step 6: Final answer
    x = 111,205.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.