Home / 100,748.09-151,116.66-30,621.93

Finding the Fourth Proportional to 100,748.09, 151,116.66 and 30,621.93

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Solution

The fourth proportional to 100,748.09, 151,116.66 and 30,621.93 is: 45,931.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,748.09 : 151,116.66 = 30,621.93 : x
  2. Step 2: Convert to fraction form
    100,748.09/151,116.66 = 30,621.93/x
  3. Step 3: Cross multiply
    100,748.09x = 151,116.66 × 30,621.93
  4. Step 4: Simplify right side
    100,748.09x = 4,627,483,784.35
  5. Step 5: Solve for x
    x = 4,627,483,784.35/100,748.09
  6. Step 6: Final answer
    x = 45,931.23

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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.