Home / 121,558.60-181,738.48-103,045.24

Finding the Fourth Proportional to 121,558.60, 181,738.48 and 103,045.24

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Solution

The fourth proportional to 121,558.60, 181,738.48 and 103,045.24 is: 154,059.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,558.60 : 181,738.48 = 103,045.24 : x
  2. Step 2: Convert to fraction form
    121,558.60/181,738.48 = 103,045.24/x
  3. Step 3: Cross multiply
    121,558.60x = 181,738.48 × 103,045.24
  4. Step 4: Simplify right side
    121,558.60x = 18,727,285,288.84
  5. Step 5: Solve for x
    x = 18,727,285,288.84/121,558.60
  6. Step 6: Final answer
    x = 154,059.73

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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.