Home / 138,835.43-191,449.69-118,758.77

Finding the Fourth Proportional to 138,835.43, 191,449.69 and 118,758.77

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Solution

The fourth proportional to 138,835.43, 191,449.69 and 118,758.77 is: 163,764.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,835.43 : 191,449.69 = 118,758.77 : x
  2. Step 2: Convert to fraction form
    138,835.43/191,449.69 = 118,758.77/x
  3. Step 3: Cross multiply
    138,835.43x = 191,449.69 × 118,758.77
  4. Step 4: Simplify right side
    138,835.43x = 22,736,328,150.24
  5. Step 5: Solve for x
    x = 22,736,328,150.24/138,835.43
  6. Step 6: Final answer
    x = 163,764.60

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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.