Home / 210,079.55-314,618.20-121,147.07

Finding the Fourth Proportional to 210,079.55, 314,618.20 and 121,147.07

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Solution

The fourth proportional to 210,079.55, 314,618.20 and 121,147.07 is: 181,431.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,079.55 : 314,618.20 = 121,147.07 : x
  2. Step 2: Convert to fraction form
    210,079.55/314,618.20 = 121,147.07/x
  3. Step 3: Cross multiply
    210,079.55x = 314,618.20 × 121,147.07
  4. Step 4: Simplify right side
    210,079.55x = 38,115,073,098.67
  5. Step 5: Solve for x
    x = 38,115,073,098.67/210,079.55
  6. Step 6: Final answer
    x = 181,431.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.