Home / 112,407.72-155,832.91-106,415.24

Finding the Fourth Proportional to 112,407.72, 155,832.91 and 106,415.24

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Solution

The fourth proportional to 112,407.72, 155,832.91 and 106,415.24 is: 147,525.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,407.72 : 155,832.91 = 106,415.24 : x
  2. Step 2: Convert to fraction form
    112,407.72/155,832.91 = 106,415.24/x
  3. Step 3: Cross multiply
    112,407.72x = 155,832.91 × 106,415.24
  4. Step 4: Simplify right side
    112,407.72x = 16,582,996,517.55
  5. Step 5: Solve for x
    x = 16,582,996,517.55/112,407.72
  6. Step 6: Final answer
    x = 147,525.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.