Home / 155,983.28-215,256.96-88,014.67

Finding the Fourth Proportional to 155,983.28, 215,256.96 and 88,014.67

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Solution

The fourth proportional to 155,983.28, 215,256.96 and 88,014.67 is: 121,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,983.28 : 215,256.96 = 88,014.67 : x
  2. Step 2: Convert to fraction form
    155,983.28/215,256.96 = 88,014.67/x
  3. Step 3: Cross multiply
    155,983.28x = 215,256.96 × 88,014.67
  4. Step 4: Simplify right side
    155,983.28x = 18,945,770,299.60
  5. Step 5: Solve for x
    x = 18,945,770,299.60/155,983.28
  6. Step 6: Final answer
    x = 121,460.26

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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.