Home / 210,687.07-290,746.16-115,192.75

Finding the Fourth Proportional to 210,687.07, 290,746.16 and 115,192.75

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Solution

The fourth proportional to 210,687.07, 290,746.16 and 115,192.75 is: 158,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,687.07 : 290,746.16 = 115,192.75 : x
  2. Step 2: Convert to fraction form
    210,687.07/290,746.16 = 115,192.75/x
  3. Step 3: Cross multiply
    210,687.07x = 290,746.16 × 115,192.75
  4. Step 4: Simplify right side
    210,687.07x = 33,491,848,268.61
  5. Step 5: Solve for x
    x = 33,491,848,268.61/210,687.07
  6. Step 6: Final answer
    x = 158,964.90

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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.