Home / 114,289.49-171,445.51-39,399.78

Finding the Fourth Proportional to 114,289.49, 171,445.51 and 39,399.78

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Solution

The fourth proportional to 114,289.49, 171,445.51 and 39,399.78 is: 59,103.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,289.49 : 171,445.51 = 39,399.78 : x
  2. Step 2: Convert to fraction form
    114,289.49/171,445.51 = 39,399.78/x
  3. Step 3: Cross multiply
    114,289.49x = 171,445.51 × 39,399.78
  4. Step 4: Simplify right side
    114,289.49x = 6,754,914,518.76
  5. Step 5: Solve for x
    x = 6,754,914,518.76/114,289.49
  6. Step 6: Final answer
    x = 59,103.55

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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.