Home / 211,177.50-291,432.23-115,684.20

Finding the Fourth Proportional to 211,177.50, 291,432.23 and 115,684.20

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Solution

The fourth proportional to 211,177.50, 291,432.23 and 115,684.20 is: 159,648.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,177.50 : 291,432.23 = 115,684.20 : x
  2. Step 2: Convert to fraction form
    211,177.50/291,432.23 = 115,684.20/x
  3. Step 3: Cross multiply
    211,177.50x = 291,432.23 × 115,684.20
  4. Step 4: Simplify right side
    211,177.50x = 33,714,104,237.16
  5. Step 5: Solve for x
    x = 33,714,104,237.16/211,177.50
  6. Step 6: Final answer
    x = 159,648.19

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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.