Home / 163,308.36-225,376.63-90,719.54

Finding the Fourth Proportional to 163,308.36, 225,376.63 and 90,719.54

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Solution

The fourth proportional to 163,308.36, 225,376.63 and 90,719.54 is: 125,199.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,308.36 : 225,376.63 = 90,719.54 : x
  2. Step 2: Convert to fraction form
    163,308.36/225,376.63 = 90,719.54/x
  3. Step 3: Cross multiply
    163,308.36x = 225,376.63 × 90,719.54
  4. Step 4: Simplify right side
    163,308.36x = 20,446,063,691.83
  5. Step 5: Solve for x
    x = 20,446,063,691.83/163,308.36
  6. Step 6: Final answer
    x = 125,199.12

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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.