Home / 125,118.63-187,865.19-108,303.77

Finding the Fourth Proportional to 125,118.63, 187,865.19 and 108,303.77

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Solution

The fourth proportional to 125,118.63, 187,865.19 and 108,303.77 is: 162,617.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,118.63 : 187,865.19 = 108,303.77 : x
  2. Step 2: Convert to fraction form
    125,118.63/187,865.19 = 108,303.77/x
  3. Step 3: Cross multiply
    125,118.63x = 187,865.19 × 108,303.77
  4. Step 4: Simplify right side
    125,118.63x = 20,346,508,798.43
  5. Step 5: Solve for x
    x = 20,346,508,798.43/125,118.63
  6. Step 6: Final answer
    x = 162,617.74

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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.