Home / 154,033.55-212,562.14-84,180.09

Finding the Fourth Proportional to 154,033.55, 212,562.14 and 84,180.09

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Solution

The fourth proportional to 154,033.55, 212,562.14 and 84,180.09 is: 116,166.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,033.55 : 212,562.14 = 84,180.09 : x
  2. Step 2: Convert to fraction form
    154,033.55/212,562.14 = 84,180.09/x
  3. Step 3: Cross multiply
    154,033.55x = 212,562.14 × 84,180.09
  4. Step 4: Simplify right side
    154,033.55x = 17,893,499,654.89
  5. Step 5: Solve for x
    x = 17,893,499,654.89/154,033.55
  6. Step 6: Final answer
    x = 116,166.25

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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.