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Finding the Fourth Proportional to 114,028.40, 171,042.60 and 76,703.60

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Solution

The fourth proportional to 114,028.40, 171,042.60 and 76,703.60 is: 115,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,028.40 : 171,042.60 = 76,703.60 : x
  2. Step 2: Convert to fraction form
    114,028.40/171,042.60 = 76,703.60/x
  3. Step 3: Cross multiply
    114,028.40x = 171,042.60 × 76,703.60
  4. Step 4: Simplify right side
    114,028.40x = 13,119,583,173.36
  5. Step 5: Solve for x
    x = 13,119,583,173.36/114,028.40
  6. Step 6: Final answer
    x = 115,055.40

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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.