Home / 106,741.54-147,323.64-70,379.02

Finding the Fourth Proportional to 106,741.54, 147,323.64 and 70,379.02

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Solution

The fourth proportional to 106,741.54, 147,323.64 and 70,379.02 is: 97,136.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,741.54 : 147,323.64 = 70,379.02 : x
  2. Step 2: Convert to fraction form
    106,741.54/147,323.64 = 70,379.02/x
  3. Step 3: Cross multiply
    106,741.54x = 147,323.64 × 70,379.02
  4. Step 4: Simplify right side
    106,741.54x = 10,368,493,406.03
  5. Step 5: Solve for x
    x = 10,368,493,406.03/106,741.54
  6. Step 6: Final answer
    x = 97,136.44

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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.