Home / 112,913.12-169,369.74-28,679.60

Finding the Fourth Proportional to 112,913.12, 169,369.74 and 28,679.60

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Solution

The fourth proportional to 112,913.12, 169,369.74 and 28,679.60 is: 43,019.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,913.12 : 169,369.74 = 28,679.60 : x
  2. Step 2: Convert to fraction form
    112,913.12/169,369.74 = 28,679.60/x
  3. Step 3: Cross multiply
    112,913.12x = 169,369.74 × 28,679.60
  4. Step 4: Simplify right side
    112,913.12x = 4,857,456,395.30
  5. Step 5: Solve for x
    x = 4,857,456,395.30/112,913.12
  6. Step 6: Final answer
    x = 43,019.42

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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.