Home / 142,333.24-196,416.46-77,799.60

Finding the Fourth Proportional to 142,333.24, 196,416.46 and 77,799.60

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Solution

The fourth proportional to 142,333.24, 196,416.46 and 77,799.60 is: 107,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,333.24 : 196,416.46 = 77,799.60 : x
  2. Step 2: Convert to fraction form
    142,333.24/196,416.46 = 77,799.60/x
  3. Step 3: Cross multiply
    142,333.24x = 196,416.46 × 77,799.60
  4. Step 4: Simplify right side
    142,333.24x = 15,281,122,021.42
  5. Step 5: Solve for x
    x = 15,281,122,021.42/142,333.24
  6. Step 6: Final answer
    x = 107,361.58

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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.