Home / 171,633.03-236,804.72-99,999.21

Finding the Fourth Proportional to 171,633.03, 236,804.72 and 99,999.21

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Solution

The fourth proportional to 171,633.03, 236,804.72 and 99,999.21 is: 137,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,633.03 : 236,804.72 = 99,999.21 : x
  2. Step 2: Convert to fraction form
    171,633.03/236,804.72 = 99,999.21/x
  3. Step 3: Cross multiply
    171,633.03x = 236,804.72 × 99,999.21
  4. Step 4: Simplify right side
    171,633.03x = 23,680,283,980.27
  5. Step 5: Solve for x
    x = 23,680,283,980.27/171,633.03
  6. Step 6: Final answer
    x = 137,970.44

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1.5x scale

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.