Home / 150,138.96-207,101.50-99,152.16

Finding the Fourth Proportional to 150,138.96, 207,101.50 and 99,152.16

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Solution

The fourth proportional to 150,138.96, 207,101.50 and 99,152.16 is: 136,770.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,138.96 : 207,101.50 = 99,152.16 : x
  2. Step 2: Convert to fraction form
    150,138.96/207,101.50 = 99,152.16/x
  3. Step 3: Cross multiply
    150,138.96x = 207,101.50 × 99,152.16
  4. Step 4: Simplify right side
    150,138.96x = 20,534,561,064.24
  5. Step 5: Solve for x
    x = 20,534,561,064.24/150,138.96
  6. Step 6: Final answer
    x = 136,770.37

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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.