Home / 145,697.09-201,067.45-80,288.69

Finding the Fourth Proportional to 145,697.09, 201,067.45 and 80,288.69

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Solution

The fourth proportional to 145,697.09, 201,067.45 and 80,288.69 is: 110,801.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,697.09 : 201,067.45 = 80,288.69 : x
  2. Step 2: Convert to fraction form
    145,697.09/201,067.45 = 80,288.69/x
  3. Step 3: Cross multiply
    145,697.09x = 201,067.45 × 80,288.69
  4. Step 4: Simplify right side
    145,697.09x = 16,143,440,956.08
  5. Step 5: Solve for x
    x = 16,143,440,956.08/145,697.09
  6. Step 6: Final answer
    x = 110,801.40

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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.