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Finding the Fourth Proportional to 103,080.20, 154,505.10 and 58,728.20

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Solution

The fourth proportional to 103,080.20, 154,505.10 and 58,728.20 is: 88,026.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,080.20 : 154,505.10 = 58,728.20 : x
  2. Step 2: Convert to fraction form
    103,080.20/154,505.10 = 58,728.20/x
  3. Step 3: Cross multiply
    103,080.20x = 154,505.10 × 58,728.20
  4. Step 4: Simplify right side
    103,080.20x = 9,073,806,413.82
  5. Step 5: Solve for x
    x = 9,073,806,413.82/103,080.20
  6. Step 6: Final answer
    x = 88,026.67

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1.5x scale

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.