Home / 210,983.64-291,160.18-115,488.30

Finding the Fourth Proportional to 210,983.64, 291,160.18 and 115,488.30

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Solution

The fourth proportional to 210,983.64, 291,160.18 and 115,488.30 is: 159,375.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,983.64 : 291,160.18 = 115,488.30 : x
  2. Step 2: Convert to fraction form
    210,983.64/291,160.18 = 115,488.30/x
  3. Step 3: Cross multiply
    210,983.64x = 291,160.18 × 115,488.30
  4. Step 4: Simplify right side
    210,983.64x = 33,625,594,215.89
  5. Step 5: Solve for x
    x = 33,625,594,215.89/210,983.64
  6. Step 6: Final answer
    x = 159,375.36

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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.