Home / 102,415.71-153,651.44-31,336.77

Finding the Fourth Proportional to 102,415.71, 153,651.44 and 31,336.77

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Solution

The fourth proportional to 102,415.71, 153,651.44 and 31,336.77 is: 47,013.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,415.71 : 153,651.44 = 31,336.77 : x
  2. Step 2: Convert to fraction form
    102,415.71/153,651.44 = 31,336.77/x
  3. Step 3: Cross multiply
    102,415.71x = 153,651.44 × 31,336.77
  4. Step 4: Simplify right side
    102,415.71x = 4,814,939,835.45
  5. Step 5: Solve for x
    x = 4,814,939,835.45/102,415.71
  6. Step 6: Final answer
    x = 47,013.68

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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.