Home / 105,012.02-157,418.16-66,954.44

Finding the Fourth Proportional to 105,012.02, 157,418.16 and 66,954.44

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Solution

The fourth proportional to 105,012.02, 157,418.16 and 66,954.44 is: 100,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,012.02 : 157,418.16 = 66,954.44 : x
  2. Step 2: Convert to fraction form
    105,012.02/157,418.16 = 66,954.44/x
  3. Step 3: Cross multiply
    105,012.02x = 157,418.16 × 66,954.44
  4. Step 4: Simplify right side
    105,012.02x = 10,539,844,748.63
  5. Step 5: Solve for x
    x = 10,539,844,748.63/105,012.02
  6. Step 6: Final answer
    x = 100,367.98

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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.