Home / 197,388.32-272,421.84-112,485.92

Finding the Fourth Proportional to 197,388.32, 272,421.84 and 112,485.92

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Solution

The fourth proportional to 197,388.32, 272,421.84 and 112,485.92 is: 155,245.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,388.32 : 272,421.84 = 112,485.92 : x
  2. Step 2: Convert to fraction form
    197,388.32/272,421.84 = 112,485.92/x
  3. Step 3: Cross multiply
    197,388.32x = 272,421.84 × 112,485.92
  4. Step 4: Simplify right side
    197,388.32x = 30,643,621,300.49
  5. Step 5: Solve for x
    x = 30,643,621,300.49/197,388.32
  6. Step 6: Final answer
    x = 155,245.36

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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.