Home / 100,748.02-151,116.57-30,621.87

Finding the Fourth Proportional to 100,748.02, 151,116.57 and 30,621.87

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Solution

The fourth proportional to 100,748.02, 151,116.57 and 30,621.87 is: 45,931.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,748.02 : 151,116.57 = 30,621.87 : x
  2. Step 2: Convert to fraction form
    100,748.02/151,116.57 = 30,621.87/x
  3. Step 3: Cross multiply
    100,748.02x = 151,116.57 × 30,621.87
  4. Step 4: Simplify right side
    100,748.02x = 4,627,471,279.87
  5. Step 5: Solve for x
    x = 4,627,471,279.87/100,748.02
  6. Step 6: Final answer
    x = 45,931.14

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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.