Home / 142,722.91-196,969.62-79,066.63

Finding the Fourth Proportional to 142,722.91, 196,969.62 and 79,066.63

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Solution

The fourth proportional to 142,722.91, 196,969.62 and 79,066.63 is: 109,118.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,722.91 : 196,969.62 = 79,066.63 : x
  2. Step 2: Convert to fraction form
    142,722.91/196,969.62 = 79,066.63/x
  3. Step 3: Cross multiply
    142,722.91x = 196,969.62 × 79,066.63
  4. Step 4: Simplify right side
    142,722.91x = 15,573,724,608.49
  5. Step 5: Solve for x
    x = 15,573,724,608.49/142,722.91
  6. Step 6: Final answer
    x = 109,118.60

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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.