Home / 155,795.73-215,175.45-104,719.79

Finding the Fourth Proportional to 155,795.73, 215,175.45 and 104,719.79

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Solution

The fourth proportional to 155,795.73, 215,175.45 and 104,719.79 is: 144,632.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,795.73 : 215,175.45 = 104,719.79 : x
  2. Step 2: Convert to fraction form
    155,795.73/215,175.45 = 104,719.79/x
  3. Step 3: Cross multiply
    155,795.73x = 215,175.45 × 104,719.79
  4. Step 4: Simplify right side
    155,795.73x = 22,533,126,861.28
  5. Step 5: Solve for x
    x = 22,533,126,861.28/155,795.73
  6. Step 6: Final answer
    x = 144,632.51

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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.