Home / 185,763.12-256,431.60-125,415.51

Finding the Fourth Proportional to 185,763.12, 256,431.60 and 125,415.51

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Solution

The fourth proportional to 185,763.12, 256,431.60 and 125,415.51 is: 173,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,763.12 : 256,431.60 = 125,415.51 : x
  2. Step 2: Convert to fraction form
    185,763.12/256,431.60 = 125,415.51/x
  3. Step 3: Cross multiply
    185,763.12x = 256,431.60 × 125,415.51
  4. Step 4: Simplify right side
    185,763.12x = 32,160,500,743.41
  5. Step 5: Solve for x
    x = 32,160,500,743.41/185,763.12
  6. Step 6: Final answer
    x = 173,126.40

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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.