Home / 185,763.21-256,431.69-125,415.57

Finding the Fourth Proportional to 185,763.21, 256,431.69 and 125,415.57

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Solution

The fourth proportional to 185,763.21, 256,431.69 and 125,415.57 is: 173,126.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,763.21 : 256,431.69 = 125,415.57 : x
  2. Step 2: Convert to fraction form
    185,763.21/256,431.69 = 125,415.57/x
  3. Step 3: Cross multiply
    185,763.21x = 256,431.69 × 125,415.57
  4. Step 4: Simplify right side
    185,763.21x = 32,160,526,567.41
  5. Step 5: Solve for x
    x = 32,160,526,567.41/185,763.21
  6. Step 6: Final answer
    x = 173,126.46

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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.