Home / 98,942.69-136,571.93-63,132.63

Finding the Fourth Proportional to 98,942.69, 136,571.93 and 63,132.63

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Solution

The fourth proportional to 98,942.69, 136,571.93 and 63,132.63 is: 87,142.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,942.69 : 136,571.93 = 63,132.63 : x
  2. Step 2: Convert to fraction form
    98,942.69/136,571.93 = 63,132.63/x
  3. Step 3: Cross multiply
    98,942.69x = 136,571.93 × 63,132.63
  4. Step 4: Simplify right side
    98,942.69x = 8,622,144,809.41
  5. Step 5: Solve for x
    x = 8,622,144,809.41/98,942.69
  6. Step 6: Final answer
    x = 87,142.82

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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.