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Finding the Fourth Proportional to 105,292.76, 157,915.92 and 30,396.62

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Solution

The fourth proportional to 105,292.76, 157,915.92 and 30,396.62 is: 45,588.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,292.76 : 157,915.92 = 30,396.62 : x
  2. Step 2: Convert to fraction form
    105,292.76/157,915.92 = 30,396.62/x
  3. Step 3: Cross multiply
    105,292.76x = 157,915.92 × 30,396.62
  4. Step 4: Simplify right side
    105,292.76x = 4,800,110,212.19
  5. Step 5: Solve for x
    x = 4,800,110,212.19/105,292.76
  6. Step 6: Final answer
    x = 45,588.23

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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.