Home / 98,681.15-136,171.77-55,658.27

Finding the Fourth Proportional to 98,681.15, 136,171.77 and 55,658.27

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Solution

The fourth proportional to 98,681.15, 136,171.77 and 55,658.27 is: 76,803.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,681.15 : 136,171.77 = 55,658.27 : x
  2. Step 2: Convert to fraction form
    98,681.15/136,171.77 = 55,658.27/x
  3. Step 3: Cross multiply
    98,681.15x = 136,171.77 × 55,658.27
  4. Step 4: Simplify right side
    98,681.15x = 7,579,085,272.75
  5. Step 5: Solve for x
    x = 7,579,085,272.75/98,681.15
  6. Step 6: Final answer
    x = 76,803.78

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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.