Home / 171,207.81-256,437.23-86,822.55

Finding the Fourth Proportional to 171,207.81, 256,437.23 and 86,822.55

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Solution

The fourth proportional to 171,207.81, 256,437.23 and 86,822.55 is: 130,043.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,207.81 : 256,437.23 = 86,822.55 : x
  2. Step 2: Convert to fraction form
    171,207.81/256,437.23 = 86,822.55/x
  3. Step 3: Cross multiply
    171,207.81x = 256,437.23 × 86,822.55
  4. Step 4: Simplify right side
    171,207.81x = 22,264,533,789.42
  5. Step 5: Solve for x
    x = 22,264,533,789.42/171,207.81
  6. Step 6: Final answer
    x = 130,043.91

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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.