Home / 142,299.44-196,365.48-78,633.13

Finding the Fourth Proportional to 142,299.44, 196,365.48 and 78,633.13

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Solution

The fourth proportional to 142,299.44, 196,365.48 and 78,633.13 is: 108,509.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,299.44 : 196,365.48 = 78,633.13 : x
  2. Step 2: Convert to fraction form
    142,299.44/196,365.48 = 78,633.13/x
  3. Step 3: Cross multiply
    142,299.44x = 196,365.48 × 78,633.13
  4. Step 4: Simplify right side
    142,299.44x = 15,440,831,334.53
  5. Step 5: Solve for x
    x = 15,440,831,334.53/142,299.44
  6. Step 6: Final answer
    x = 108,509.44

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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.