Home / 210,992.23-291,172.49-115,507.81

Finding the Fourth Proportional to 210,992.23, 291,172.49 and 115,507.81

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Solution

The fourth proportional to 210,992.23, 291,172.49 and 115,507.81 is: 159,402.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,992.23 : 291,172.49 = 115,507.81 : x
  2. Step 2: Convert to fraction form
    210,992.23/291,172.49 = 115,507.81/x
  3. Step 3: Cross multiply
    210,992.23x = 291,172.49 × 115,507.81
  4. Step 4: Simplify right side
    210,992.23x = 33,632,696,652.15
  5. Step 5: Solve for x
    x = 33,632,696,652.15/210,992.23
  6. Step 6: Final answer
    x = 159,402.54

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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.