Home / 233,120.16-321,702.75-131,145.30

Finding the Fourth Proportional to 233,120.16, 321,702.75 and 131,145.30

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Solution

The fourth proportional to 233,120.16, 321,702.75 and 131,145.30 is: 180,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,120.16 : 321,702.75 = 131,145.30 : x
  2. Step 2: Convert to fraction form
    233,120.16/321,702.75 = 131,145.30/x
  3. Step 3: Cross multiply
    233,120.16x = 321,702.75 × 131,145.30
  4. Step 4: Simplify right side
    233,120.16x = 42,189,803,659.58
  5. Step 5: Solve for x
    x = 42,189,803,659.58/233,120.16
  6. Step 6: Final answer
    x = 180,978.79

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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.