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Finding the Fourth Proportional to 164,287.80, 226,718.52 and 90,702.60

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Solution

The fourth proportional to 164,287.80, 226,718.52 and 90,702.60 is: 125,170.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,287.80 : 226,718.52 = 90,702.60 : x
  2. Step 2: Convert to fraction form
    164,287.80/226,718.52 = 90,702.60/x
  3. Step 3: Cross multiply
    164,287.80x = 226,718.52 × 90,702.60
  4. Step 4: Simplify right side
    164,287.80x = 20,563,959,232.15
  5. Step 5: Solve for x
    x = 20,563,959,232.15/164,287.80
  6. Step 6: Final answer
    x = 125,170.34

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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.