Home / 211,117.68-291,342.48-114,321.54

Finding the Fourth Proportional to 211,117.68, 291,342.48 and 114,321.54

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Solution

The fourth proportional to 211,117.68, 291,342.48 and 114,321.54 is: 157,763.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,117.68 : 291,342.48 = 114,321.54 : x
  2. Step 2: Convert to fraction form
    211,117.68/291,342.48 = 114,321.54/x
  3. Step 3: Cross multiply
    211,117.68x = 291,342.48 × 114,321.54
  4. Step 4: Simplify right side
    211,117.68x = 33,306,720,981.02
  5. Step 5: Solve for x
    x = 33,306,720,981.02/211,117.68
  6. Step 6: Final answer
    x = 157,763.77

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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.