Home / 151,631.42-209,261.61-87,969.24

Finding the Fourth Proportional to 151,631.42, 209,261.61 and 87,969.24

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Solution

The fourth proportional to 151,631.42, 209,261.61 and 87,969.24 is: 121,403.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,631.42 : 209,261.61 = 87,969.24 : x
  2. Step 2: Convert to fraction form
    151,631.42/209,261.61 = 87,969.24/x
  3. Step 3: Cross multiply
    151,631.42x = 209,261.61 × 87,969.24
  4. Step 4: Simplify right side
    151,631.42x = 18,408,584,792.88
  5. Step 5: Solve for x
    x = 18,408,584,792.88/151,631.42
  6. Step 6: Final answer
    x = 121,403.50

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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.