Home / 102,454.07-153,698.72-31,374.95

Finding the Fourth Proportional to 102,454.07, 153,698.72 and 31,374.95

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Solution

The fourth proportional to 102,454.07, 153,698.72 and 31,374.95 is: 47,067.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,454.07 : 153,698.72 = 31,374.95 : x
  2. Step 2: Convert to fraction form
    102,454.07/153,698.72 = 31,374.95/x
  3. Step 3: Cross multiply
    102,454.07x = 153,698.72 × 31,374.95
  4. Step 4: Simplify right side
    102,454.07x = 4,822,288,729.70
  5. Step 5: Solve for x
    x = 4,822,288,729.70/102,454.07
  6. Step 6: Final answer
    x = 47,067.81

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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.