Home / 102,002.55-153,003.83-45,820.95

Finding the Fourth Proportional to 102,002.55, 153,003.83 and 45,820.95

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Solution

The fourth proportional to 102,002.55, 153,003.83 and 45,820.95 is: 68,731.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,002.55 : 153,003.83 = 45,820.95 : x
  2. Step 2: Convert to fraction form
    102,002.55/153,003.83 = 45,820.95/x
  3. Step 3: Cross multiply
    102,002.55x = 153,003.83 × 45,820.95
  4. Step 4: Simplify right side
    102,002.55x = 7,010,780,615.13
  5. Step 5: Solve for x
    x = 7,010,780,615.13/102,002.55
  6. Step 6: Final answer
    x = 68,731.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.