Home / 100,348.74-138,367.44-64,001.34

Finding the Fourth Proportional to 100,348.74, 138,367.44 and 64,001.34

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Solution

The fourth proportional to 100,348.74, 138,367.44 and 64,001.34 is: 88,249.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,348.74 : 138,367.44 = 64,001.34 : x
  2. Step 2: Convert to fraction form
    100,348.74/138,367.44 = 64,001.34/x
  3. Step 3: Cross multiply
    100,348.74x = 138,367.44 × 64,001.34
  4. Step 4: Simplify right side
    100,348.74x = 8,855,701,572.37
  5. Step 5: Solve for x
    x = 8,855,701,572.37/100,348.74
  6. Step 6: Final answer
    x = 88,249.26

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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.