Home / 88,186.20-121,698.27-47,900.75

Finding the Fourth Proportional to 88,186.20, 121,698.27 and 47,900.75

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Solution

The fourth proportional to 88,186.20, 121,698.27 and 47,900.75 is: 66,103.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,186.20 : 121,698.27 = 47,900.75 : x
  2. Step 2: Convert to fraction form
    88,186.20/121,698.27 = 47,900.75/x
  3. Step 3: Cross multiply
    88,186.20x = 121,698.27 × 47,900.75
  4. Step 4: Simplify right side
    88,186.20x = 5,829,437,798.21
  5. Step 5: Solve for x
    x = 5,829,437,798.21/88,186.20
  6. Step 6: Final answer
    x = 66,103.74

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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.