Home / 256,134.35-384,196.14-85,368.43

Finding the Fourth Proportional to 256,134.35, 384,196.14 and 85,368.43

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Solution

The fourth proportional to 256,134.35, 384,196.14 and 85,368.43 is: 128,050.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,134.35 : 384,196.14 = 85,368.43 : x
  2. Step 2: Convert to fraction form
    256,134.35/384,196.14 = 85,368.43/x
  3. Step 3: Cross multiply
    256,134.35x = 384,196.14 × 85,368.43
  4. Step 4: Simplify right side
    256,134.35x = 32,798,218,936.04
  5. Step 5: Solve for x
    x = 32,798,218,936.04/256,134.35
  6. Step 6: Final answer
    x = 128,050.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.