Home / 121,302.34-181,964.45-46,419.46

Finding the Fourth Proportional to 121,302.34, 181,964.45 and 46,419.46

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Solution

The fourth proportional to 121,302.34, 181,964.45 and 46,419.46 is: 69,633.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,302.34 : 181,964.45 = 46,419.46 : x
  2. Step 2: Convert to fraction form
    121,302.34/181,964.45 = 46,419.46/x
  3. Step 3: Cross multiply
    121,302.34x = 181,964.45 × 46,419.46
  4. Step 4: Simplify right side
    121,302.34x = 8,446,691,508.20
  5. Step 5: Solve for x
    x = 8,446,691,508.20/121,302.34
  6. Step 6: Final answer
    x = 69,633.38

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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.