Home / 210,906.18-291,050.50-115,412.85

Finding the Fourth Proportional to 210,906.18, 291,050.50 and 115,412.85

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Solution

The fourth proportional to 210,906.18, 291,050.50 and 115,412.85 is: 159,269.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,906.18 : 291,050.50 = 115,412.85 : x
  2. Step 2: Convert to fraction form
    210,906.18/291,050.50 = 115,412.85/x
  3. Step 3: Cross multiply
    210,906.18x = 291,050.50 × 115,412.85
  4. Step 4: Simplify right side
    210,906.18x = 33,590,965,666.61
  5. Step 5: Solve for x
    x = 33,590,965,666.61/210,906.18
  6. Step 6: Final answer
    x = 159,269.71

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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.