Home / 107,289.40-160,934.10-82,406.20

Finding the Fourth Proportional to 107,289.40, 160,934.10 and 82,406.20

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Solution

The fourth proportional to 107,289.40, 160,934.10 and 82,406.20 is: 123,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,289.40 : 160,934.10 = 82,406.20 : x
  2. Step 2: Convert to fraction form
    107,289.40/160,934.10 = 82,406.20/x
  3. Step 3: Cross multiply
    107,289.40x = 160,934.10 × 82,406.20
  4. Step 4: Simplify right side
    107,289.40x = 13,261,967,631.42
  5. Step 5: Solve for x
    x = 13,261,967,631.42/107,289.40
  6. Step 6: Final answer
    x = 123,609.30

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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.