Home / 103,055.86-154,605.86-31,976.95

Finding the Fourth Proportional to 103,055.86, 154,605.86 and 31,976.95

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Solution

The fourth proportional to 103,055.86, 154,605.86 and 31,976.95 is: 47,972.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,055.86 : 154,605.86 = 31,976.95 : x
  2. Step 2: Convert to fraction form
    103,055.86/154,605.86 = 31,976.95/x
  3. Step 3: Cross multiply
    103,055.86x = 154,605.86 × 31,976.95
  4. Step 4: Simplify right side
    103,055.86x = 4,943,823,854.93
  5. Step 5: Solve for x
    x = 4,943,823,854.93/103,055.86
  6. Step 6: Final answer
    x = 47,972.27

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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.