Home / 188,474.09-282,724.86-70,145.39

Finding the Fourth Proportional to 188,474.09, 282,724.86 and 70,145.39

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Solution

The fourth proportional to 188,474.09, 282,724.86 and 70,145.39 is: 105,223.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,474.09 : 282,724.86 = 70,145.39 : x
  2. Step 2: Convert to fraction form
    188,474.09/282,724.86 = 70,145.39/x
  3. Step 3: Cross multiply
    188,474.09x = 282,724.86 × 70,145.39
  4. Step 4: Simplify right side
    188,474.09x = 19,831,845,567.40
  5. Step 5: Solve for x
    x = 19,831,845,567.40/188,474.09
  6. Step 6: Final answer
    x = 105,223.19

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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.