Home / 102,720.20-154,094.70-40,376.20

Finding the Fourth Proportional to 102,720.20, 154,094.70 and 40,376.20

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Solution

The fourth proportional to 102,720.20, 154,094.70 and 40,376.20 is: 60,569.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,720.20 : 154,094.70 = 40,376.20 : x
  2. Step 2: Convert to fraction form
    102,720.20/154,094.70 = 40,376.20/x
  3. Step 3: Cross multiply
    102,720.20x = 154,094.70 × 40,376.20
  4. Step 4: Simplify right side
    102,720.20x = 6,221,758,426.14
  5. Step 5: Solve for x
    x = 6,221,758,426.14/102,720.20
  6. Step 6: Final answer
    x = 60,569.96

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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.