Home / 142,782.94-197,035.50-79,126.66

Finding the Fourth Proportional to 142,782.94, 197,035.50 and 79,126.66

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Solution

The fourth proportional to 142,782.94, 197,035.50 and 79,126.66 is: 109,192.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,782.94 : 197,035.50 = 79,126.66 : x
  2. Step 2: Convert to fraction form
    142,782.94/197,035.50 = 79,126.66/x
  3. Step 3: Cross multiply
    142,782.94x = 197,035.50 × 79,126.66
  4. Step 4: Simplify right side
    142,782.94x = 15,590,761,016.43
  5. Step 5: Solve for x
    x = 15,590,761,016.43/142,782.94
  6. Step 6: Final answer
    x = 109,192.04

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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.