Home / 113,913.64-157,201.86-66,169

Finding the Fourth Proportional to 113,913.64, 157,201.86 and 66,169

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Solution

The fourth proportional to 113,913.64, 157,201.86 and 66,169 is: 91,313.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,913.64 : 157,201.86 = 66,169 : x
  2. Step 2: Convert to fraction form
    113,913.64/157,201.86 = 66,169/x
  3. Step 3: Cross multiply
    113,913.64x = 157,201.86 × 66,169
  4. Step 4: Simplify right side
    113,913.64x = 10,401,889,874.34
  5. Step 5: Solve for x
    x = 10,401,889,874.34/113,913.64
  6. Step 6: Final answer
    x = 91,313.82

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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.