Home / 185,538.60-256,225.14-128,324.52

Finding the Fourth Proportional to 185,538.60, 256,225.14 and 128,324.52

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Solution

The fourth proportional to 185,538.60, 256,225.14 and 128,324.52 is: 177,213.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,538.60 : 256,225.14 = 128,324.52 : x
  2. Step 2: Convert to fraction form
    185,538.60/256,225.14 = 128,324.52/x
  3. Step 3: Cross multiply
    185,538.60x = 256,225.14 × 128,324.52
  4. Step 4: Simplify right side
    185,538.60x = 32,879,968,102.43
  5. Step 5: Solve for x
    x = 32,879,968,102.43/185,538.60
  6. Step 6: Final answer
    x = 177,213.63

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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.