Home / 142,199.06-196,230.94-78,535.48

Finding the Fourth Proportional to 142,199.06, 196,230.94 and 78,535.48

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Solution

The fourth proportional to 142,199.06, 196,230.94 and 78,535.48 is: 108,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,199.06 : 196,230.94 = 78,535.48 : x
  2. Step 2: Convert to fraction form
    142,199.06/196,230.94 = 78,535.48/x
  3. Step 3: Cross multiply
    142,199.06x = 196,230.94 × 78,535.48
  4. Step 4: Simplify right side
    142,199.06x = 15,411,091,063.75
  5. Step 5: Solve for x
    x = 15,411,091,063.75/142,199.06
  6. Step 6: Final answer
    x = 108,376.88

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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.