Home / 123,887.15-185,830.71-53,766.45

Finding the Fourth Proportional to 123,887.15, 185,830.71 and 53,766.45

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Solution

The fourth proportional to 123,887.15, 185,830.71 and 53,766.45 is: 80,649.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,887.15 : 185,830.71 = 53,766.45 : x
  2. Step 2: Convert to fraction form
    123,887.15/185,830.71 = 53,766.45/x
  3. Step 3: Cross multiply
    123,887.15x = 185,830.71 × 53,766.45
  4. Step 4: Simplify right side
    123,887.15x = 9,991,457,577.68
  5. Step 5: Solve for x
    x = 9,991,457,577.68/123,887.15
  6. Step 6: Final answer
    x = 80,649.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.