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Finding the Fourth Proportional to 158,960.20, 238,440.30 and 85,232.20

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Solution

The fourth proportional to 158,960.20, 238,440.30 and 85,232.20 is: 127,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,960.20 : 238,440.30 = 85,232.20 : x
  2. Step 2: Convert to fraction form
    158,960.20/238,440.30 = 85,232.20/x
  3. Step 3: Cross multiply
    158,960.20x = 238,440.30 × 85,232.20
  4. Step 4: Simplify right side
    158,960.20x = 20,322,791,337.66
  5. Step 5: Solve for x
    x = 20,322,791,337.66/158,960.20
  6. Step 6: Final answer
    x = 127,848.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.