Home / 113,168.22-156,154.80-65,412.36

Finding the Fourth Proportional to 113,168.22, 156,154.80 and 65,412.36

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Solution

The fourth proportional to 113,168.22, 156,154.80 and 65,412.36 is: 90,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,168.22 : 156,154.80 = 65,412.36 : x
  2. Step 2: Convert to fraction form
    113,168.22/156,154.80 = 65,412.36/x
  3. Step 3: Cross multiply
    113,168.22x = 156,154.80 × 65,412.36
  4. Step 4: Simplify right side
    113,168.22x = 10,214,453,993.33
  5. Step 5: Solve for x
    x = 10,214,453,993.33/113,168.22
  6. Step 6: Final answer
    x = 90,259.03

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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.