Home / 145,116.21-199,902.87-123,536.39

Finding the Fourth Proportional to 145,116.21, 199,902.87 and 123,536.39

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Solution

The fourth proportional to 145,116.21, 199,902.87 and 123,536.39 is: 170,175.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,116.21 : 199,902.87 = 123,536.39 : x
  2. Step 2: Convert to fraction form
    145,116.21/199,902.87 = 123,536.39/x
  3. Step 3: Cross multiply
    145,116.21x = 199,902.87 × 123,536.39
  4. Step 4: Simplify right side
    145,116.21x = 24,695,277,910.93
  5. Step 5: Solve for x
    x = 24,695,277,910.93/145,116.21
  6. Step 6: Final answer
    x = 170,175.87

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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.