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Finding the Fourth Proportional to 167,379.78, 230,988.06 and 90,901.74

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Solution

The fourth proportional to 167,379.78, 230,988.06 and 90,901.74 is: 125,446.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,379.78 : 230,988.06 = 90,901.74 : x
  2. Step 2: Convert to fraction form
    167,379.78/230,988.06 = 90,901.74/x
  3. Step 3: Cross multiply
    167,379.78x = 230,988.06 × 90,901.74
  4. Step 4: Simplify right side
    167,379.78x = 20,997,216,573.22
  5. Step 5: Solve for x
    x = 20,997,216,573.22/167,379.78
  6. Step 6: Final answer
    x = 125,446.55

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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.