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Finding the Fourth Proportional to 105,730.92, 158,580.82 and 30,830.92

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Solution

The fourth proportional to 105,730.92, 158,580.82 and 30,830.92 is: 46,241.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,730.92 : 158,580.82 = 30,830.92 : x
  2. Step 2: Convert to fraction form
    105,730.92/158,580.82 = 30,830.92/x
  3. Step 3: Cross multiply
    105,730.92x = 158,580.82 × 30,830.92
  4. Step 4: Simplify right side
    105,730.92x = 4,889,192,574.95
  5. Step 5: Solve for x
    x = 4,889,192,574.95/105,730.92
  6. Step 6: Final answer
    x = 46,241.84

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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.