Home / 178,999.09-247,019.63-98,431.81

Finding the Fourth Proportional to 178,999.09, 247,019.63 and 98,431.81

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Solution

The fourth proportional to 178,999.09, 247,019.63 and 98,431.81 is: 135,836.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,999.09 : 247,019.63 = 98,431.81 : x
  2. Step 2: Convert to fraction form
    178,999.09/247,019.63 = 98,431.81/x
  3. Step 3: Cross multiply
    178,999.09x = 247,019.63 × 98,431.81
  4. Step 4: Simplify right side
    178,999.09x = 24,314,589,532.51
  5. Step 5: Solve for x
    x = 24,314,589,532.51/178,999.09
  6. Step 6: Final answer
    x = 135,836.39

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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.