Home / 98,989.63-136,603.90-55,968.38

Finding the Fourth Proportional to 98,989.63, 136,603.90 and 55,968.38

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Solution

The fourth proportional to 98,989.63, 136,603.90 and 55,968.38 is: 77,235.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,989.63 : 136,603.90 = 55,968.38 : x
  2. Step 2: Convert to fraction form
    98,989.63/136,603.90 = 55,968.38/x
  3. Step 3: Cross multiply
    98,989.63x = 136,603.90 × 55,968.38
  4. Step 4: Simplify right side
    98,989.63x = 7,645,498,984.68
  5. Step 5: Solve for x
    x = 7,645,498,984.68/98,989.63
  6. Step 6: Final answer
    x = 77,235.35

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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.