Home / 98,607.38-136,078.18-56,190.51

Finding the Fourth Proportional to 98,607.38, 136,078.18 and 56,190.51

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Solution

The fourth proportional to 98,607.38, 136,078.18 and 56,190.51 is: 77,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,607.38 : 136,078.18 = 56,190.51 : x
  2. Step 2: Convert to fraction form
    98,607.38/136,078.18 = 56,190.51/x
  3. Step 3: Cross multiply
    98,607.38x = 136,078.18 × 56,190.51
  4. Step 4: Simplify right side
    98,607.38x = 7,646,302,193.60
  5. Step 5: Solve for x
    x = 7,646,302,193.60/98,607.38
  6. Step 6: Final answer
    x = 77,542.90

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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.