Home / 454,064.15-681,071.52-138,496.25

Finding the Fourth Proportional to 454,064.15, 681,071.52 and 138,496.25

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Solution

The fourth proportional to 454,064.15, 681,071.52 and 138,496.25 is: 207,736.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,064.15 : 681,071.52 = 138,496.25 : x
  2. Step 2: Convert to fraction form
    454,064.15/681,071.52 = 138,496.25/x
  3. Step 3: Cross multiply
    454,064.15x = 681,071.52 × 138,496.25
  4. Step 4: Simplify right side
    454,064.15x = 94,325,851,501.80
  5. Step 5: Solve for x
    x = 94,325,851,501.80/454,064.15
  6. Step 6: Final answer
    x = 207,736.84

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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.