Home / 256,153.02-384,290.01-87,675.42

Finding the Fourth Proportional to 256,153.02, 384,290.01 and 87,675.42

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Solution

The fourth proportional to 256,153.02, 384,290.01 and 87,675.42 is: 131,533.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,153.02 : 384,290.01 = 87,675.42 : x
  2. Step 2: Convert to fraction form
    256,153.02/384,290.01 = 87,675.42/x
  3. Step 3: Cross multiply
    256,153.02x = 384,290.01 × 87,675.42
  4. Step 4: Simplify right side
    256,153.02x = 33,692,788,028.55
  5. Step 5: Solve for x
    x = 33,692,788,028.55/256,153.02
  6. Step 6: Final answer
    x = 131,533.83

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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.