Home / 103,130.96-154,740.55-43,173.44

Finding the Fourth Proportional to 103,130.96, 154,740.55 and 43,173.44

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Solution

The fourth proportional to 103,130.96, 154,740.55 and 43,173.44 is: 64,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,130.96 : 154,740.55 = 43,173.44 : x
  2. Step 2: Convert to fraction form
    103,130.96/154,740.55 = 43,173.44/x
  3. Step 3: Cross multiply
    103,130.96x = 154,740.55 × 43,173.44
  4. Step 4: Simplify right side
    103,130.96x = 6,680,681,752.01
  5. Step 5: Solve for x
    x = 6,680,681,752.01/103,130.96
  6. Step 6: Final answer
    x = 64,778.63

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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.