Home / 210,965.76-291,132.84-115,472.94

Finding the Fourth Proportional to 210,965.76, 291,132.84 and 115,472.94

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Solution

The fourth proportional to 210,965.76, 291,132.84 and 115,472.94 is: 159,352.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,965.76 : 291,132.84 = 115,472.94 : x
  2. Step 2: Convert to fraction form
    210,965.76/291,132.84 = 115,472.94/x
  3. Step 3: Cross multiply
    210,965.76x = 291,132.84 × 115,472.94
  4. Step 4: Simplify right side
    210,965.76x = 33,617,964,965.35
  5. Step 5: Solve for x
    x = 33,617,964,965.35/210,965.76
  6. Step 6: Final answer
    x = 159,352.71

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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.