Home / 157,745.35-236,378.60-115,653.45

Finding the Fourth Proportional to 157,745.35, 236,378.60 and 115,653.45

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Solution

The fourth proportional to 157,745.35, 236,378.60 and 115,653.45 is: 173,304.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,745.35 : 236,378.60 = 115,653.45 : x
  2. Step 2: Convert to fraction form
    157,745.35/236,378.60 = 115,653.45/x
  3. Step 3: Cross multiply
    157,745.35x = 236,378.60 × 115,653.45
  4. Step 4: Simplify right side
    157,745.35x = 27,338,000,017.90
  5. Step 5: Solve for x
    x = 27,338,000,017.90/157,745.35
  6. Step 6: Final answer
    x = 173,304.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.