Home / 115,147.12-171,716.24-102,404.20

Finding the Fourth Proportional to 115,147.12, 171,716.24 and 102,404.20

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Solution

The fourth proportional to 115,147.12, 171,716.24 and 102,404.20 is: 152,713.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,147.12 : 171,716.24 = 102,404.20 : x
  2. Step 2: Convert to fraction form
    115,147.12/171,716.24 = 102,404.20/x
  3. Step 3: Cross multiply
    115,147.12x = 171,716.24 × 102,404.20
  4. Step 4: Simplify right side
    115,147.12x = 17,584,464,184.21
  5. Step 5: Solve for x
    x = 17,584,464,184.21/115,147.12
  6. Step 6: Final answer
    x = 152,713.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.