Home / 138,420.30-207,630.45-94,133.55

Finding the Fourth Proportional to 138,420.30, 207,630.45 and 94,133.55

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Solution

The fourth proportional to 138,420.30, 207,630.45 and 94,133.55 is: 141,200.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,420.30 : 207,630.45 = 94,133.55 : x
  2. Step 2: Convert to fraction form
    138,420.30/207,630.45 = 94,133.55/x
  3. Step 3: Cross multiply
    138,420.30x = 207,630.45 × 94,133.55
  4. Step 4: Simplify right side
    138,420.30x = 19,544,991,346.60
  5. Step 5: Solve for x
    x = 19,544,991,346.60/138,420.30
  6. Step 6: Final answer
    x = 141,200.33

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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.