Home / 392,747.11-589,166.80-140,063.51

Finding the Fourth Proportional to 392,747.11, 589,166.80 and 140,063.51

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Solution

The fourth proportional to 392,747.11, 589,166.80 and 140,063.51 is: 210,111.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,747.11 : 589,166.80 = 140,063.51 : x
  2. Step 2: Convert to fraction form
    392,747.11/589,166.80 = 140,063.51/x
  3. Step 3: Cross multiply
    392,747.11x = 589,166.80 × 140,063.51
  4. Step 4: Simplify right side
    392,747.11x = 82,520,771,106.23
  5. Step 5: Solve for x
    x = 82,520,771,106.23/392,747.11
  6. Step 6: Final answer
    x = 210,111.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.