Home / 98,111.85-135,395.27-55,667.04

Finding the Fourth Proportional to 98,111.85, 135,395.27 and 55,667.04

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Solution

The fourth proportional to 98,111.85, 135,395.27 and 55,667.04 is: 76,821.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,111.85 : 135,395.27 = 55,667.04 : x
  2. Step 2: Convert to fraction form
    98,111.85/135,395.27 = 55,667.04/x
  3. Step 3: Cross multiply
    98,111.85x = 135,395.27 × 55,667.04
  4. Step 4: Simplify right side
    98,111.85x = 7,537,053,333.58
  5. Step 5: Solve for x
    x = 7,537,053,333.58/98,111.85
  6. Step 6: Final answer
    x = 76,821.03

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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.