Home / 154,274.37-212,877.36-86,287.83

Finding the Fourth Proportional to 154,274.37, 212,877.36 and 86,287.83

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Solution

The fourth proportional to 154,274.37, 212,877.36 and 86,287.83 is: 119,065.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,274.37 : 212,877.36 = 86,287.83 : x
  2. Step 2: Convert to fraction form
    154,274.37/212,877.36 = 86,287.83/x
  3. Step 3: Cross multiply
    154,274.37x = 212,877.36 × 86,287.83
  4. Step 4: Simplify right side
    154,274.37x = 18,368,725,450.53
  5. Step 5: Solve for x
    x = 18,368,725,450.53/154,274.37
  6. Step 6: Final answer
    x = 119,065.31

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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.