Home / 185,765.21-256,434.45-125,417.60

Finding the Fourth Proportional to 185,765.21, 256,434.45 and 125,417.60

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Solution

The fourth proportional to 185,765.21, 256,434.45 and 125,417.60 is: 173,129.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,765.21 : 256,434.45 = 125,417.60 : x
  2. Step 2: Convert to fraction form
    185,765.21/256,434.45 = 125,417.60/x
  3. Step 3: Cross multiply
    185,765.21x = 256,434.45 × 125,417.60
  4. Step 4: Simplify right side
    185,765.21x = 32,161,393,276.32
  5. Step 5: Solve for x
    x = 32,161,393,276.32/185,765.21
  6. Step 6: Final answer
    x = 173,129.26

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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.