Home / 142,603.46-196,794.33-78,942.32

Finding the Fourth Proportional to 142,603.46, 196,794.33 and 78,942.32

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Solution

The fourth proportional to 142,603.46, 196,794.33 and 78,942.32 is: 108,941.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,603.46 : 196,794.33 = 78,942.32 : x
  2. Step 2: Convert to fraction form
    142,603.46/196,794.33 = 78,942.32/x
  3. Step 3: Cross multiply
    142,603.46x = 196,794.33 × 78,942.32
  4. Step 4: Simplify right side
    142,603.46x = 15,535,400,973.05
  5. Step 5: Solve for x
    x = 15,535,400,973.05/142,603.46
  6. Step 6: Final answer
    x = 108,941.26

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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.