Home / 78,182.05-117,273.10-19,017.35

Finding the Fourth Proportional to 78,182.05, 117,273.10 and 19,017.35

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Solution

The fourth proportional to 78,182.05, 117,273.10 and 19,017.35 is: 28,526.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,182.05 : 117,273.10 = 19,017.35 : x
  2. Step 2: Convert to fraction form
    78,182.05/117,273.10 = 19,017.35/x
  3. Step 3: Cross multiply
    78,182.05x = 117,273.10 × 19,017.35
  4. Step 4: Simplify right side
    78,182.05x = 2,230,223,493.20
  5. Step 5: Solve for x
    x = 2,230,223,493.20/78,182.05
  6. Step 6: Final answer
    x = 28,526.03

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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.