Home / 104,122.54-156,248.08-40,931.60

Finding the Fourth Proportional to 104,122.54, 156,248.08 and 40,931.60

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Solution

The fourth proportional to 104,122.54, 156,248.08 and 40,931.60 is: 61,422.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,122.54 : 156,248.08 = 40,931.60 : x
  2. Step 2: Convert to fraction form
    104,122.54/156,248.08 = 40,931.60/x
  3. Step 3: Cross multiply
    104,122.54x = 156,248.08 × 40,931.60
  4. Step 4: Simplify right side
    104,122.54x = 6,395,483,911.33
  5. Step 5: Solve for x
    x = 6,395,483,911.33/104,122.54
  6. Step 6: Final answer
    x = 61,422.67

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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.