Home / 153,002.18-211,138.82-85,017.42

Finding the Fourth Proportional to 153,002.18, 211,138.82 and 85,017.42

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Solution

The fourth proportional to 153,002.18, 211,138.82 and 85,017.42 is: 117,321.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,002.18 : 211,138.82 = 85,017.42 : x
  2. Step 2: Convert to fraction form
    153,002.18/211,138.82 = 85,017.42/x
  3. Step 3: Cross multiply
    153,002.18x = 211,138.82 × 85,017.42
  4. Step 4: Simplify right side
    153,002.18x = 17,950,477,738.24
  5. Step 5: Solve for x
    x = 17,950,477,738.24/153,002.18
  6. Step 6: Final answer
    x = 117,321.71

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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.