Home / 185,534.60-256,219.62-128,320.52

Finding the Fourth Proportional to 185,534.60, 256,219.62 and 128,320.52

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Solution

The fourth proportional to 185,534.60, 256,219.62 and 128,320.52 is: 177,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,534.60 : 256,219.62 = 128,320.52 : x
  2. Step 2: Convert to fraction form
    185,534.60/256,219.62 = 128,320.52/x
  3. Step 3: Cross multiply
    185,534.60x = 256,219.62 × 128,320.52
  4. Step 4: Simplify right side
    185,534.60x = 32,878,234,872.60
  5. Step 5: Solve for x
    x = 32,878,234,872.60/185,534.60
  6. Step 6: Final answer
    x = 177,208.10

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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.