Home / 114,631.40-171,947.10-85,106.90

Finding the Fourth Proportional to 114,631.40, 171,947.10 and 85,106.90

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Solution

The fourth proportional to 114,631.40, 171,947.10 and 85,106.90 is: 127,660.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,631.40 : 171,947.10 = 85,106.90 : x
  2. Step 2: Convert to fraction form
    114,631.40/171,947.10 = 85,106.90/x
  3. Step 3: Cross multiply
    114,631.40x = 171,947.10 × 85,106.90
  4. Step 4: Simplify right side
    114,631.40x = 14,633,884,644.99
  5. Step 5: Solve for x
    x = 14,633,884,644.99/114,631.40
  6. Step 6: Final answer
    x = 127,660.35

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Similar ratio
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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.