Home / 113,913.35-157,168.86-65,512.64

Finding the Fourth Proportional to 113,913.35, 157,168.86 and 65,512.64

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Solution

The fourth proportional to 113,913.35, 157,168.86 and 65,512.64 is: 90,389.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,913.35 : 157,168.86 = 65,512.64 : x
  2. Step 2: Convert to fraction form
    113,913.35/157,168.86 = 65,512.64/x
  3. Step 3: Cross multiply
    113,913.35x = 157,168.86 × 65,512.64
  4. Step 4: Simplify right side
    113,913.35x = 10,296,546,944.39
  5. Step 5: Solve for x
    x = 10,296,546,944.39/113,913.35
  6. Step 6: Final answer
    x = 90,389.29

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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.