Home / 97,900.02-135,104.78-55,458.55

Finding the Fourth Proportional to 97,900.02, 135,104.78 and 55,458.55

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Solution

The fourth proportional to 97,900.02, 135,104.78 and 55,458.55 is: 76,534.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,900.02 : 135,104.78 = 55,458.55 : x
  2. Step 2: Convert to fraction form
    97,900.02/135,104.78 = 55,458.55/x
  3. Step 3: Cross multiply
    97,900.02x = 135,104.78 × 55,458.55
  4. Step 4: Simplify right side
    97,900.02x = 7,492,715,196.87
  5. Step 5: Solve for x
    x = 7,492,715,196.87/97,900.02
  6. Step 6: Final answer
    x = 76,534.36

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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.