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Finding the Fourth Proportional to 183,441.05, 275,161.58 and 78,465.05

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Solution

The fourth proportional to 183,441.05, 275,161.58 and 78,465.05 is: 117,697.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,441.05 : 275,161.58 = 78,465.05 : x
  2. Step 2: Convert to fraction form
    183,441.05/275,161.58 = 78,465.05/x
  3. Step 3: Cross multiply
    183,441.05x = 275,161.58 × 78,465.05
  4. Step 4: Simplify right side
    183,441.05x = 21,590,566,740.45
  5. Step 5: Solve for x
    x = 21,590,566,740.45/183,441.05
  6. Step 6: Final answer
    x = 117,697.58

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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.