Home / 145,890.83-201,325.33-81,362.03

Finding the Fourth Proportional to 145,890.83, 201,325.33 and 81,362.03

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Solution

The fourth proportional to 145,890.83, 201,325.33 and 81,362.03 is: 112,277.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,890.83 : 201,325.33 = 81,362.03 : x
  2. Step 2: Convert to fraction form
    145,890.83/201,325.33 = 81,362.03/x
  3. Step 3: Cross multiply
    145,890.83x = 201,325.33 × 81,362.03
  4. Step 4: Simplify right side
    145,890.83x = 16,380,237,200.52
  5. Step 5: Solve for x
    x = 16,380,237,200.52/145,890.83
  6. Step 6: Final answer
    x = 112,277.36

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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.