Home / 131,124.69-196,461.05-103,223.43

Finding the Fourth Proportional to 131,124.69, 196,461.05 and 103,223.43

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Solution

The fourth proportional to 131,124.69, 196,461.05 and 103,223.43 is: 154,657.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,124.69 : 196,461.05 = 103,223.43 : x
  2. Step 2: Convert to fraction form
    131,124.69/196,461.05 = 103,223.43/x
  3. Step 3: Cross multiply
    131,124.69x = 196,461.05 × 103,223.43
  4. Step 4: Simplify right side
    131,124.69x = 20,279,382,926.28
  5. Step 5: Solve for x
    x = 20,279,382,926.28/131,124.69
  6. Step 6: Final answer
    x = 154,657.24

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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.