Home / 109,981.60-164,981.04-31,094.56

Finding the Fourth Proportional to 109,981.60, 164,981.04 and 31,094.56

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Solution

The fourth proportional to 109,981.60, 164,981.04 and 31,094.56 is: 46,644.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,981.60 : 164,981.04 = 31,094.56 : x
  2. Step 2: Convert to fraction form
    109,981.60/164,981.04 = 31,094.56/x
  3. Step 3: Cross multiply
    109,981.60x = 164,981.04 × 31,094.56
  4. Step 4: Simplify right side
    109,981.60x = 5,130,012,847.14
  5. Step 5: Solve for x
    x = 5,130,012,847.14/109,981.60
  6. Step 6: Final answer
    x = 46,644.28

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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.