Home / 118,315.08-163,447.54-102,371.85

Finding the Fourth Proportional to 118,315.08, 163,447.54 and 102,371.85

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Solution

The fourth proportional to 118,315.08, 163,447.54 and 102,371.85 is: 141,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,315.08 : 163,447.54 = 102,371.85 : x
  2. Step 2: Convert to fraction form
    118,315.08/163,447.54 = 102,371.85/x
  3. Step 3: Cross multiply
    118,315.08x = 163,447.54 × 102,371.85
  4. Step 4: Simplify right side
    118,315.08x = 16,732,426,791.82
  5. Step 5: Solve for x
    x = 16,732,426,791.82/118,315.08
  6. Step 6: Final answer
    x = 141,422.60

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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.