Home / 121,058.28-181,611.18-42,175.08

Finding the Fourth Proportional to 121,058.28, 181,611.18 and 42,175.08

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Solution

The fourth proportional to 121,058.28, 181,611.18 and 42,175.08 is: 63,270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,058.28 : 181,611.18 = 42,175.08 : x
  2. Step 2: Convert to fraction form
    121,058.28/181,611.18 = 42,175.08/x
  3. Step 3: Cross multiply
    121,058.28x = 181,611.18 × 42,175.08
  4. Step 4: Simplify right side
    121,058.28x = 7,659,466,045.39
  5. Step 5: Solve for x
    x = 7,659,466,045.39/121,058.28
  6. Step 6: Final answer
    x = 63,270.90

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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.