Home / 155,983.03-215,256.63-88,014.42

Finding the Fourth Proportional to 155,983.03, 215,256.63 and 88,014.42

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Solution

The fourth proportional to 155,983.03, 215,256.63 and 88,014.42 is: 121,459.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,983.03 : 215,256.63 = 88,014.42 : x
  2. Step 2: Convert to fraction form
    155,983.03/215,256.63 = 88,014.42/x
  3. Step 3: Cross multiply
    155,983.03x = 215,256.63 × 88,014.42
  4. Step 4: Simplify right side
    155,983.03x = 18,945,687,440.60
  5. Step 5: Solve for x
    x = 18,945,687,440.60/155,983.03
  6. Step 6: Final answer
    x = 121,459.93

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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.