Home / 197,763.12-272,913.84-107,120.16

Finding the Fourth Proportional to 197,763.12, 272,913.84 and 107,120.16

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Solution

The fourth proportional to 197,763.12, 272,913.84 and 107,120.16 is: 147,826.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,763.12 : 272,913.84 = 107,120.16 : x
  2. Step 2: Convert to fraction form
    197,763.12/272,913.84 = 107,120.16/x
  3. Step 3: Cross multiply
    197,763.12x = 272,913.84 × 107,120.16
  4. Step 4: Simplify right side
    197,763.12x = 29,234,574,207.01
  5. Step 5: Solve for x
    x = 29,234,574,207.01/197,763.12
  6. Step 6: Final answer
    x = 147,826.22

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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.