Home / 78,162.28-117,229.66-22,745.32

Finding the Fourth Proportional to 78,162.28, 117,229.66 and 22,745.32

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Solution

The fourth proportional to 78,162.28, 117,229.66 and 22,745.32 is: 34,113.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,162.28 : 117,229.66 = 22,745.32 : x
  2. Step 2: Convert to fraction form
    78,162.28/117,229.66 = 22,745.32/x
  3. Step 3: Cross multiply
    78,162.28x = 117,229.66 × 22,745.32
  4. Step 4: Simplify right side
    78,162.28x = 2,666,426,130.19
  5. Step 5: Solve for x
    x = 2,666,426,130.19/78,162.28
  6. Step 6: Final answer
    x = 34,113.98

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1.5x scale

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.