Home / 113,404.03-156,488.38-65,660.40

Finding the Fourth Proportional to 113,404.03, 156,488.38 and 65,660.40

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Solution

The fourth proportional to 113,404.03, 156,488.38 and 65,660.40 is: 90,606.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,404.03 : 156,488.38 = 65,660.40 : x
  2. Step 2: Convert to fraction form
    113,404.03/156,488.38 = 65,660.40/x
  3. Step 3: Cross multiply
    113,404.03x = 156,488.38 × 65,660.40
  4. Step 4: Simplify right side
    113,404.03x = 10,275,089,626.15
  5. Step 5: Solve for x
    x = 10,275,089,626.15/113,404.03
  6. Step 6: Final answer
    x = 90,606.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.