Home / 118,646.06-163,730.32-67,667.09

Finding the Fourth Proportional to 118,646.06, 163,730.32 and 67,667.09

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Solution

The fourth proportional to 118,646.06, 163,730.32 and 67,667.09 is: 93,379.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,646.06 : 163,730.32 = 67,667.09 : x
  2. Step 2: Convert to fraction form
    118,646.06/163,730.32 = 67,667.09/x
  3. Step 3: Cross multiply
    118,646.06x = 163,730.32 × 67,667.09
  4. Step 4: Simplify right side
    118,646.06x = 11,079,153,311.35
  5. Step 5: Solve for x
    x = 11,079,153,311.35/118,646.06
  6. Step 6: Final answer
    x = 93,379.87

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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.