Home / 109,953.46-151,657.53-100,908.03

Finding the Fourth Proportional to 109,953.46, 151,657.53 and 100,908.03

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Solution

The fourth proportional to 109,953.46, 151,657.53 and 100,908.03 is: 139,181.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,953.46 : 151,657.53 = 100,908.03 : x
  2. Step 2: Convert to fraction form
    109,953.46/151,657.53 = 100,908.03/x
  3. Step 3: Cross multiply
    109,953.46x = 151,657.53 × 100,908.03
  4. Step 4: Simplify right side
    109,953.46x = 15,303,462,777.28
  5. Step 5: Solve for x
    x = 15,303,462,777.28/109,953.46
  6. Step 6: Final answer
    x = 139,181.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.