Home / 154,823.28-213,659.34-87,755.28

Finding the Fourth Proportional to 154,823.28, 213,659.34 and 87,755.28

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Solution

The fourth proportional to 154,823.28, 213,659.34 and 87,755.28 is: 121,104.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,823.28 : 213,659.34 = 87,755.28 : x
  2. Step 2: Convert to fraction form
    154,823.28/213,659.34 = 87,755.28/x
  3. Step 3: Cross multiply
    154,823.28x = 213,659.34 × 87,755.28
  4. Step 4: Simplify right side
    154,823.28x = 18,749,735,206.32
  5. Step 5: Solve for x
    x = 18,749,735,206.32/154,823.28
  6. Step 6: Final answer
    x = 121,104.11

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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.