Home / 154,114.40-212,676.56-86,134.24

Finding the Fourth Proportional to 154,114.40, 212,676.56 and 86,134.24

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Solution

The fourth proportional to 154,114.40, 212,676.56 and 86,134.24 is: 118,864.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,114.40 : 212,676.56 = 86,134.24 : x
  2. Step 2: Convert to fraction form
    154,114.40/212,676.56 = 86,134.24/x
  3. Step 3: Cross multiply
    154,114.40x = 212,676.56 × 86,134.24
  4. Step 4: Simplify right side
    154,114.40x = 18,318,734,019.59
  5. Step 5: Solve for x
    x = 18,318,734,019.59/154,114.40
  6. Step 6: Final answer
    x = 118,864.52

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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.