Home / 112,913.07-169,369.68-28,679.55

Finding the Fourth Proportional to 112,913.07, 169,369.68 and 28,679.55

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Solution

The fourth proportional to 112,913.07, 169,369.68 and 28,679.55 is: 43,019.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,913.07 : 169,369.68 = 28,679.55 : x
  2. Step 2: Convert to fraction form
    112,913.07/169,369.68 = 28,679.55/x
  3. Step 3: Cross multiply
    112,913.07x = 169,369.68 × 28,679.55
  4. Step 4: Simplify right side
    112,913.07x = 4,857,446,206.04
  5. Step 5: Solve for x
    x = 4,857,446,206.04/112,913.07
  6. Step 6: Final answer
    x = 43,019.34

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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.