Home / 131,810.69-197,428.94-68,439.63

Finding the Fourth Proportional to 131,810.69, 197,428.94 and 68,439.63

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Solution

The fourth proportional to 131,810.69, 197,428.94 and 68,439.63 is: 102,510.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,810.69 : 197,428.94 = 68,439.63 : x
  2. Step 2: Convert to fraction form
    131,810.69/197,428.94 = 68,439.63/x
  3. Step 3: Cross multiply
    131,810.69x = 197,428.94 × 68,439.63
  4. Step 4: Simplify right side
    131,810.69x = 13,511,963,262.69
  5. Step 5: Solve for x
    x = 13,511,963,262.69/131,810.69
  6. Step 6: Final answer
    x = 102,510.38

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1.5x scale

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.