Home / 210,977.10-291,137.13-115,465.32

Finding the Fourth Proportional to 210,977.10, 291,137.13 and 115,465.32

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Solution

The fourth proportional to 210,977.10, 291,137.13 and 115,465.32 is: 159,335.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,977.10 : 291,137.13 = 115,465.32 : x
  2. Step 2: Convert to fraction form
    210,977.10/291,137.13 = 115,465.32/x
  3. Step 3: Cross multiply
    210,977.10x = 291,137.13 × 115,465.32
  4. Step 4: Simplify right side
    210,977.10x = 33,616,241,879.33
  5. Step 5: Solve for x
    x = 33,616,241,879.33/210,977.10
  6. Step 6: Final answer
    x = 159,335.97

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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.