Home / 121,645.11-182,477.43-42,777.03

Finding the Fourth Proportional to 121,645.11, 182,477.43 and 42,777.03

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Solution

The fourth proportional to 121,645.11, 182,477.43 and 42,777.03 is: 64,168.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,645.11 : 182,477.43 = 42,777.03 : x
  2. Step 2: Convert to fraction form
    121,645.11/182,477.43 = 42,777.03/x
  3. Step 3: Cross multiply
    121,645.11x = 182,477.43 × 42,777.03
  4. Step 4: Simplify right side
    121,645.11x = 7,805,842,497.43
  5. Step 5: Solve for x
    x = 7,805,842,497.43/121,645.11
  6. Step 6: Final answer
    x = 64,168.98

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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.