Home / 151,530.78-209,202.08-134,717.25

Finding the Fourth Proportional to 151,530.78, 209,202.08 and 134,717.25

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Solution

The fourth proportional to 151,530.78, 209,202.08 and 134,717.25 is: 185,989.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,530.78 : 209,202.08 = 134,717.25 : x
  2. Step 2: Convert to fraction form
    151,530.78/209,202.08 = 134,717.25/x
  3. Step 3: Cross multiply
    151,530.78x = 209,202.08 × 134,717.25
  4. Step 4: Simplify right side
    151,530.78x = 28,183,128,238.29
  5. Step 5: Solve for x
    x = 28,183,128,238.29/151,530.78
  6. Step 6: Final answer
    x = 185,989.46

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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.