Home / 154,009.32-212,530.56-86,027.52

Finding the Fourth Proportional to 154,009.32, 212,530.56 and 86,027.52

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Solution

The fourth proportional to 154,009.32, 212,530.56 and 86,027.52 is: 118,716.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,009.32 : 212,530.56 = 86,027.52 : x
  2. Step 2: Convert to fraction form
    154,009.32/212,530.56 = 86,027.52/x
  3. Step 3: Cross multiply
    154,009.32x = 212,530.56 × 86,027.52
  4. Step 4: Simplify right side
    154,009.32x = 18,283,477,001.01
  5. Step 5: Solve for x
    x = 18,283,477,001.01/154,009.32
  6. Step 6: Final answer
    x = 118,716.69

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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.