Home / 114,643.20-171,972.48-40,751.36

Finding the Fourth Proportional to 114,643.20, 171,972.48 and 40,751.36

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Solution

The fourth proportional to 114,643.20, 171,972.48 and 40,751.36 is: 61,129.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,643.20 : 171,972.48 = 40,751.36 : x
  2. Step 2: Convert to fraction form
    114,643.20/171,972.48 = 40,751.36/x
  3. Step 3: Cross multiply
    114,643.20x = 171,972.48 × 40,751.36
  4. Step 4: Simplify right side
    114,643.20x = 7,008,112,442.57
  5. Step 5: Solve for x
    x = 7,008,112,442.57/114,643.20
  6. Step 6: Final answer
    x = 61,129.77

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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.