Home / 130,666.03-195,752.39-77,198.47

Finding the Fourth Proportional to 130,666.03, 195,752.39 and 77,198.47

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Solution

The fourth proportional to 130,666.03, 195,752.39 and 77,198.47 is: 115,651.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,666.03 : 195,752.39 = 77,198.47 : x
  2. Step 2: Convert to fraction form
    130,666.03/195,752.39 = 77,198.47/x
  3. Step 3: Cross multiply
    130,666.03x = 195,752.39 × 77,198.47
  4. Step 4: Simplify right side
    130,666.03x = 15,111,784,028.08
  5. Step 5: Solve for x
    x = 15,111,784,028.08/130,666.03
  6. Step 6: Final answer
    x = 115,651.98

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1.5x scale

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.