Home / 98,991.02-136,571.80-65,017.94

Finding the Fourth Proportional to 98,991.02, 136,571.80 and 65,017.94

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Solution

The fourth proportional to 98,991.02, 136,571.80 and 65,017.94 is: 89,701.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,991.02 : 136,571.80 = 65,017.94 : x
  2. Step 2: Convert to fraction form
    98,991.02/136,571.80 = 65,017.94/x
  3. Step 3: Cross multiply
    98,991.02x = 136,571.80 × 65,017.94
  4. Step 4: Simplify right side
    98,991.02x = 8,879,617,098.09
  5. Step 5: Solve for x
    x = 8,879,617,098.09/98,991.02
  6. Step 6: Final answer
    x = 89,701.24

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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.