Home / 142,024.03-195,993.02-78,361.83

Finding the Fourth Proportional to 142,024.03, 195,993.02 and 78,361.83

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Solution

The fourth proportional to 142,024.03, 195,993.02 and 78,361.83 is: 108,139.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,024.03 : 195,993.02 = 78,361.83 : x
  2. Step 2: Convert to fraction form
    142,024.03/195,993.02 = 78,361.83/x
  3. Step 3: Cross multiply
    142,024.03x = 195,993.02 × 78,361.83
  4. Step 4: Simplify right side
    142,024.03x = 15,358,371,469.55
  5. Step 5: Solve for x
    x = 15,358,371,469.55/142,024.03
  6. Step 6: Final answer
    x = 108,139.24

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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.