Home / 100,956.60-151,442.10-30,835.80

Finding the Fourth Proportional to 100,956.60, 151,442.10 and 30,835.80

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Solution

The fourth proportional to 100,956.60, 151,442.10 and 30,835.80 is: 46,255.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,956.60 : 151,442.10 = 30,835.80 : x
  2. Step 2: Convert to fraction form
    100,956.60/151,442.10 = 30,835.80/x
  3. Step 3: Cross multiply
    100,956.60x = 151,442.10 × 30,835.80
  4. Step 4: Simplify right side
    100,956.60x = 4,669,838,307.18
  5. Step 5: Solve for x
    x = 4,669,838,307.18/100,956.60
  6. Step 6: Final answer
    x = 46,255.90

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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.