Home / 128,045.16-192,016.44-53,114.40

Finding the Fourth Proportional to 128,045.16, 192,016.44 and 53,114.40

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Solution

The fourth proportional to 128,045.16, 192,016.44 and 53,114.40 is: 79,650.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,045.16 : 192,016.44 = 53,114.40 : x
  2. Step 2: Convert to fraction form
    128,045.16/192,016.44 = 53,114.40/x
  3. Step 3: Cross multiply
    128,045.16x = 192,016.44 × 53,114.40
  4. Step 4: Simplify right side
    128,045.16x = 10,198,838,000.74
  5. Step 5: Solve for x
    x = 10,198,838,000.74/128,045.16
  6. Step 6: Final answer
    x = 79,650.32

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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.