Home / 154,029.07-212,552.52-86,032.50

Finding the Fourth Proportional to 154,029.07, 212,552.52 and 86,032.50

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Solution

The fourth proportional to 154,029.07, 212,552.52 and 86,032.50 is: 118,720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,029.07 : 212,552.52 = 86,032.50 : x
  2. Step 2: Convert to fraction form
    154,029.07/212,552.52 = 86,032.50/x
  3. Step 3: Cross multiply
    154,029.07x = 212,552.52 × 86,032.50
  4. Step 4: Simplify right side
    154,029.07x = 18,286,424,676.90
  5. Step 5: Solve for x
    x = 18,286,424,676.90/154,029.07
  6. Step 6: Final answer
    x = 118,720.61

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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.