Home / 236,702.12-326,650.74-129,270.20

Finding the Fourth Proportional to 236,702.12, 326,650.74 and 129,270.20

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Solution

The fourth proportional to 236,702.12, 326,650.74 and 129,270.20 is: 178,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,702.12 : 326,650.74 = 129,270.20 : x
  2. Step 2: Convert to fraction form
    236,702.12/326,650.74 = 129,270.20/x
  3. Step 3: Cross multiply
    236,702.12x = 326,650.74 × 129,270.20
  4. Step 4: Simplify right side
    236,702.12x = 42,226,206,489.95
  5. Step 5: Solve for x
    x = 42,226,206,489.95/236,702.12
  6. Step 6: Final answer
    x = 178,393.87

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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.