Home / 106,968.10-147,619.38-61,642.48

Finding the Fourth Proportional to 106,968.10, 147,619.38 and 61,642.48

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Solution

The fourth proportional to 106,968.10, 147,619.38 and 61,642.48 is: 85,068.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,968.10 : 147,619.38 = 61,642.48 : x
  2. Step 2: Convert to fraction form
    106,968.10/147,619.38 = 61,642.48/x
  3. Step 3: Cross multiply
    106,968.10x = 147,619.38 × 61,642.48
  4. Step 4: Simplify right side
    106,968.10x = 9,099,624,679.26
  5. Step 5: Solve for x
    x = 9,099,624,679.26/106,968.10
  6. Step 6: Final answer
    x = 85,068.58

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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.