Home / 210,994.07-291,172.61-115,509.65

Finding the Fourth Proportional to 210,994.07, 291,172.61 and 115,509.65

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Solution

The fourth proportional to 210,994.07, 291,172.61 and 115,509.65 is: 159,403.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,994.07 : 291,172.61 = 115,509.65 : x
  2. Step 2: Convert to fraction form
    210,994.07/291,172.61 = 115,509.65/x
  3. Step 3: Cross multiply
    210,994.07x = 291,172.61 × 115,509.65
  4. Step 4: Simplify right side
    210,994.07x = 33,633,244,237.28
  5. Step 5: Solve for x
    x = 33,633,244,237.28/210,994.07
  6. Step 6: Final answer
    x = 159,403.75

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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.