Home / 201,405.36-301,911-83,176.32

Finding the Fourth Proportional to 201,405.36, 301,911 and 83,176.32

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Solution

The fourth proportional to 201,405.36, 301,911 and 83,176.32 is: 124,683.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,405.36 : 301,911 = 83,176.32 : x
  2. Step 2: Convert to fraction form
    201,405.36/301,911 = 83,176.32/x
  3. Step 3: Cross multiply
    201,405.36x = 301,911 × 83,176.32
  4. Step 4: Simplify right side
    201,405.36x = 25,111,845,947.52
  5. Step 5: Solve for x
    x = 25,111,845,947.52/201,405.36
  6. Step 6: Final answer
    x = 124,683.11

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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.