Home / 211,036.73-291,230.55-115,543.40

Finding the Fourth Proportional to 211,036.73, 291,230.55 and 115,543.40

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Solution

The fourth proportional to 211,036.73, 291,230.55 and 115,543.40 is: 159,449.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,036.73 : 291,230.55 = 115,543.40 : x
  2. Step 2: Convert to fraction form
    211,036.73/291,230.55 = 115,543.40/x
  3. Step 3: Cross multiply
    211,036.73x = 291,230.55 × 115,543.40
  4. Step 4: Simplify right side
    211,036.73x = 33,649,767,930.87
  5. Step 5: Solve for x
    x = 33,649,767,930.87/211,036.73
  6. Step 6: Final answer
    x = 159,449.82

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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.