Home / 151,827.18-209,608.96-100,908.96

Finding the Fourth Proportional to 151,827.18, 209,608.96 and 100,908.96

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Solution

The fourth proportional to 151,827.18, 209,608.96 and 100,908.96 is: 139,312.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,827.18 : 209,608.96 = 100,908.96 : x
  2. Step 2: Convert to fraction form
    151,827.18/209,608.96 = 100,908.96/x
  3. Step 3: Cross multiply
    151,827.18x = 209,608.96 × 100,908.96
  4. Step 4: Simplify right side
    151,827.18x = 21,151,422,160.28
  5. Step 5: Solve for x
    x = 21,151,422,160.28/151,827.18
  6. Step 6: Final answer
    x = 139,312.49

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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.