Home / 185,106.39-255,449.30-112,488.63

Finding the Fourth Proportional to 185,106.39, 255,449.30 and 112,488.63

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Solution

The fourth proportional to 185,106.39, 255,449.30 and 112,488.63 is: 155,235.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,106.39 : 255,449.30 = 112,488.63 : x
  2. Step 2: Convert to fraction form
    185,106.39/255,449.30 = 112,488.63/x
  3. Step 3: Cross multiply
    185,106.39x = 255,449.30 × 112,488.63
  4. Step 4: Simplify right side
    185,106.39x = 28,735,141,229.02
  5. Step 5: Solve for x
    x = 28,735,141,229.02/185,106.39
  6. Step 6: Final answer
    x = 155,235.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.