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Finding the Fourth Proportional to 115,260, 172,890 and 37,436

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Solution

The fourth proportional to 115,260, 172,890 and 37,436 is: 56,154

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,260 : 172,890 = 37,436 : x
  2. Step 2: Convert to fraction form
    115,260/172,890 = 37,436/x
  3. Step 3: Cross multiply
    115,260x = 172,890 × 37,436
  4. Step 4: Simplify right side
    115,260x = 6,472,310,040
  5. Step 5: Solve for x
    x = 6,472,310,040/115,260
  6. Step 6: Final answer
    x = 56,154

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.