Home / 121,231.64-181,803.72-51,116.42

Finding the Fourth Proportional to 121,231.64, 181,803.72 and 51,116.42

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Solution

The fourth proportional to 121,231.64, 181,803.72 and 51,116.42 is: 76,656.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,231.64 : 181,803.72 = 51,116.42 : x
  2. Step 2: Convert to fraction form
    121,231.64/181,803.72 = 51,116.42/x
  3. Step 3: Cross multiply
    121,231.64x = 181,803.72 × 51,116.42
  4. Step 4: Simplify right side
    121,231.64x = 9,293,154,501.34
  5. Step 5: Solve for x
    x = 9,293,154,501.34/121,231.64
  6. Step 6: Final answer
    x = 76,656.18

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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.