Home / 176,331.29-243,342-103,739.30

Finding the Fourth Proportional to 176,331.29, 243,342 and 103,739.30

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Solution

The fourth proportional to 176,331.29, 243,342 and 103,739.30 is: 143,163.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,331.29 : 243,342 = 103,739.30 : x
  2. Step 2: Convert to fraction form
    176,331.29/243,342 = 103,739.30/x
  3. Step 3: Cross multiply
    176,331.29x = 243,342 × 103,739.30
  4. Step 4: Simplify right side
    176,331.29x = 25,244,128,740.60
  5. Step 5: Solve for x
    x = 25,244,128,740.60/176,331.29
  6. Step 6: Final answer
    x = 143,163.07

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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.