Home / 138,012.15-207,017.98-43,249.60

Finding the Fourth Proportional to 138,012.15, 207,017.98 and 43,249.60

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Solution

The fourth proportional to 138,012.15, 207,017.98 and 43,249.60 is: 64,874.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,012.15 : 207,017.98 = 43,249.60 : x
  2. Step 2: Convert to fraction form
    138,012.15/207,017.98 = 43,249.60/x
  3. Step 3: Cross multiply
    138,012.15x = 207,017.98 × 43,249.60
  4. Step 4: Simplify right side
    138,012.15x = 8,953,443,813.98
  5. Step 5: Solve for x
    x = 8,953,443,813.98/138,012.15
  6. Step 6: Final answer
    x = 64,874.31

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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.