Home / 133,721.90-184,512.03-85,964.30

Finding the Fourth Proportional to 133,721.90, 184,512.03 and 85,964.30

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Solution

The fourth proportional to 133,721.90, 184,512.03 and 85,964.30 is: 118,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,721.90 : 184,512.03 = 85,964.30 : x
  2. Step 2: Convert to fraction form
    133,721.90/184,512.03 = 85,964.30/x
  3. Step 3: Cross multiply
    133,721.90x = 184,512.03 × 85,964.30
  4. Step 4: Simplify right side
    133,721.90x = 15,861,447,500.53
  5. Step 5: Solve for x
    x = 15,861,447,500.53/133,721.90
  6. Step 6: Final answer
    x = 118,615.18

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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.