Home / 113,913.58-157,174.14-66,138.16

Finding the Fourth Proportional to 113,913.58, 157,174.14 and 66,138.16

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Solution

The fourth proportional to 113,913.58, 157,174.14 and 66,138.16 is: 91,255.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,913.58 : 157,174.14 = 66,138.16 : x
  2. Step 2: Convert to fraction form
    113,913.58/157,174.14 = 66,138.16/x
  3. Step 3: Cross multiply
    113,913.58x = 157,174.14 × 66,138.16
  4. Step 4: Simplify right side
    113,913.58x = 10,395,208,419.18
  5. Step 5: Solve for x
    x = 10,395,208,419.18/113,913.58
  6. Step 6: Final answer
    x = 91,255.22

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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.