Home / 100,026.42-137,459.15-95,400.78

Finding the Fourth Proportional to 100,026.42, 137,459.15 and 95,400.78

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Solution

The fourth proportional to 100,026.42, 137,459.15 and 95,400.78 is: 131,102.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,026.42 : 137,459.15 = 95,400.78 : x
  2. Step 2: Convert to fraction form
    100,026.42/137,459.15 = 95,400.78/x
  3. Step 3: Cross multiply
    100,026.42x = 137,459.15 × 95,400.78
  4. Step 4: Simplify right side
    100,026.42x = 13,113,709,651.13
  5. Step 5: Solve for x
    x = 13,113,709,651.13/100,026.42
  6. Step 6: Final answer
    x = 131,102.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.