Home / 142,627.62-196,812.48-85,255.55

Finding the Fourth Proportional to 142,627.62, 196,812.48 and 85,255.55

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Solution

The fourth proportional to 142,627.62, 196,812.48 and 85,255.55 is: 117,644.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,627.62 : 196,812.48 = 85,255.55 : x
  2. Step 2: Convert to fraction form
    142,627.62/196,812.48 = 85,255.55/x
  3. Step 3: Cross multiply
    142,627.62x = 196,812.48 × 85,255.55
  4. Step 4: Simplify right side
    142,627.62x = 16,779,356,229.26
  5. Step 5: Solve for x
    x = 16,779,356,229.26/142,627.62
  6. Step 6: Final answer
    x = 117,644.51

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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.