Home / 98,639.24-136,102.02-56,186.60

Finding the Fourth Proportional to 98,639.24, 136,102.02 and 56,186.60

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Solution

The fourth proportional to 98,639.24, 136,102.02 and 56,186.60 is: 77,526.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,639.24 : 136,102.02 = 56,186.60 : x
  2. Step 2: Convert to fraction form
    98,639.24/136,102.02 = 56,186.60/x
  3. Step 3: Cross multiply
    98,639.24x = 136,102.02 × 56,186.60
  4. Step 4: Simplify right side
    98,639.24x = 7,647,109,756.93
  5. Step 5: Solve for x
    x = 7,647,109,756.93/98,639.24
  6. Step 6: Final answer
    x = 77,526.04

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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.