Home / 154,242.82-212,853.58-86,259.93

Finding the Fourth Proportional to 154,242.82, 212,853.58 and 86,259.93

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Solution

The fourth proportional to 154,242.82, 212,853.58 and 86,259.93 is: 119,037.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,242.82 : 212,853.58 = 86,259.93 : x
  2. Step 2: Convert to fraction form
    154,242.82/212,853.58 = 86,259.93/x
  3. Step 3: Cross multiply
    154,242.82x = 212,853.58 × 86,259.93
  4. Step 4: Simplify right side
    154,242.82x = 18,360,734,911.05
  5. Step 5: Solve for x
    x = 18,360,734,911.05/154,242.82
  6. Step 6: Final answer
    x = 119,037.86

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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.