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Finding the Fourth Proportional to 145,406.00, 200,813.24 and 129,556.01

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Solution

The fourth proportional to 145,406.00, 200,813.24 and 129,556.01 is: 178,923.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,406.00 : 200,813.24 = 129,556.01 : x
  2. Step 2: Convert to fraction form
    145,406.00/200,813.24 = 129,556.01/x
  3. Step 3: Cross multiply
    145,406.00x = 200,813.24 × 129,556.01
  4. Step 4: Simplify right side
    145,406.00x = 26,016,562,955.50
  5. Step 5: Solve for x
    x = 26,016,562,955.50/145,406.00
  6. Step 6: Final answer
    x = 178,923.58

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1.5x scale

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.