Home / 210,987.32-291,162.48-115,494.08

Finding the Fourth Proportional to 210,987.32, 291,162.48 and 115,494.08

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Solution

The fourth proportional to 210,987.32, 291,162.48 and 115,494.08 is: 159,381.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,987.32 : 291,162.48 = 115,494.08 : x
  2. Step 2: Convert to fraction form
    210,987.32/291,162.48 = 115,494.08/x
  3. Step 3: Cross multiply
    210,987.32x = 291,162.48 × 115,494.08
  4. Step 4: Simplify right side
    210,987.32x = 33,627,542,758.12
  5. Step 5: Solve for x
    x = 33,627,542,758.12/210,987.32
  6. Step 6: Final answer
    x = 159,381.82

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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.