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Finding the Fourth Proportional to 154,026, 212,556.52 and 83,370

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Solution

The fourth proportional to 154,026, 212,556.52 and 83,370 is: 115,050.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,026 : 212,556.52 = 83,370 : x
  2. Step 2: Convert to fraction form
    154,026/212,556.52 = 83,370/x
  3. Step 3: Cross multiply
    154,026x = 212,556.52 × 83,370
  4. Step 4: Simplify right side
    154,026x = 17,720,837,072.40
  5. Step 5: Solve for x
    x = 17,720,837,072.40/154,026
  6. Step 6: Final answer
    x = 115,050.95

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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.