Home / 154,021.60-212,537.52-86,033.24

Finding the Fourth Proportional to 154,021.60, 212,537.52 and 86,033.24

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Solution

The fourth proportional to 154,021.60, 212,537.52 and 86,033.24 is: 118,719.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,021.60 : 212,537.52 = 86,033.24 : x
  2. Step 2: Convert to fraction form
    154,021.60/212,537.52 = 86,033.24/x
  3. Step 3: Cross multiply
    154,021.60x = 212,537.52 × 86,033.24
  4. Step 4: Simplify right side
    154,021.60x = 18,285,291,201.49
  5. Step 5: Solve for x
    x = 18,285,291,201.49/154,021.60
  6. Step 6: Final answer
    x = 118,719.00

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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.