Home / 121,197.33-181,797.21-42,313.59

Finding the Fourth Proportional to 121,197.33, 181,797.21 and 42,313.59

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Solution

The fourth proportional to 121,197.33, 181,797.21 and 42,313.59 is: 63,470.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,197.33 : 181,797.21 = 42,313.59 : x
  2. Step 2: Convert to fraction form
    121,197.33/181,797.21 = 42,313.59/x
  3. Step 3: Cross multiply
    121,197.33x = 181,797.21 × 42,313.59
  4. Step 4: Simplify right side
    121,197.33x = 7,692,492,607.08
  5. Step 5: Solve for x
    x = 7,692,492,607.08/121,197.33
  6. Step 6: Final answer
    x = 63,470.81

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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.