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Finding the Fourth Proportional to 128,590.08, 192,830.88 and 48,614.54

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Solution

The fourth proportional to 128,590.08, 192,830.88 and 48,614.54 is: 72,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,590.08 : 192,830.88 = 48,614.54 : x
  2. Step 2: Convert to fraction form
    128,590.08/192,830.88 = 48,614.54/x
  3. Step 3: Cross multiply
    128,590.08x = 192,830.88 × 48,614.54
  4. Step 4: Simplify right side
    128,590.08x = 9,374,384,529.00
  5. Step 5: Solve for x
    x = 9,374,384,529.00/128,590.08
  6. Step 6: Final answer
    x = 72,901.30

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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.