Home / 148,913.20-223,369.80-85,927.60

Finding the Fourth Proportional to 148,913.20, 223,369.80 and 85,927.60

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Solution

The fourth proportional to 148,913.20, 223,369.80 and 85,927.60 is: 128,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,913.20 : 223,369.80 = 85,927.60 : x
  2. Step 2: Convert to fraction form
    148,913.20/223,369.80 = 85,927.60/x
  3. Step 3: Cross multiply
    148,913.20x = 223,369.80 × 85,927.60
  4. Step 4: Simplify right side
    148,913.20x = 19,193,630,826.48
  5. Step 5: Solve for x
    x = 19,193,630,826.48/148,913.20
  6. Step 6: Final answer
    x = 128,891.40

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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.