Home / 121,186.79-181,863.23-42,301.01

Finding the Fourth Proportional to 121,186.79, 181,863.23 and 42,301.01

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Solution

The fourth proportional to 121,186.79, 181,863.23 and 42,301.01 is: 63,480.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,186.79 : 181,863.23 = 42,301.01 : x
  2. Step 2: Convert to fraction form
    121,186.79/181,863.23 = 42,301.01/x
  3. Step 3: Cross multiply
    121,186.79x = 181,863.23 × 42,301.01
  4. Step 4: Simplify right side
    121,186.79x = 7,692,998,712.64
  5. Step 5: Solve for x
    x = 7,692,998,712.64/121,186.79
  6. Step 6: Final answer
    x = 63,480.50

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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.