Home / 211,707.85-292,157.15-114,911.78

Finding the Fourth Proportional to 211,707.85, 292,157.15 and 114,911.78

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Solution

The fourth proportional to 211,707.85, 292,157.15 and 114,911.78 is: 158,578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,707.85 : 292,157.15 = 114,911.78 : x
  2. Step 2: Convert to fraction form
    211,707.85/292,157.15 = 114,911.78/x
  3. Step 3: Cross multiply
    211,707.85x = 292,157.15 × 114,911.78
  4. Step 4: Simplify right side
    211,707.85x = 33,572,298,575.96
  5. Step 5: Solve for x
    x = 33,572,298,575.96/211,707.85
  6. Step 6: Final answer
    x = 158,578.43

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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.