Home / 103,629.10-155,674.05-100,864.30

Finding the Fourth Proportional to 103,629.10, 155,674.05 and 100,864.30

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Solution

The fourth proportional to 103,629.10, 155,674.05 and 100,864.30 is: 151,520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.10 : 155,674.05 = 100,864.30 : x
  2. Step 2: Convert to fraction form
    103,629.10/155,674.05 = 100,864.30/x
  3. Step 3: Cross multiply
    103,629.10x = 155,674.05 × 100,864.30
  4. Step 4: Simplify right side
    103,629.10x = 15,701,954,081.42
  5. Step 5: Solve for x
    x = 15,701,954,081.42/103,629.10
  6. Step 6: Final answer
    x = 151,520.70

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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.