Home / 145,387.77-200,634.06-80,857.62

Finding the Fourth Proportional to 145,387.77, 200,634.06 and 80,857.62

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Solution

The fourth proportional to 145,387.77, 200,634.06 and 80,857.62 is: 111,582.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,387.77 : 200,634.06 = 80,857.62 : x
  2. Step 2: Convert to fraction form
    145,387.77/200,634.06 = 80,857.62/x
  3. Step 3: Cross multiply
    145,387.77x = 200,634.06 × 80,857.62
  4. Step 4: Simplify right side
    145,387.77x = 16,222,792,582.54
  5. Step 5: Solve for x
    x = 16,222,792,582.54/145,387.77
  6. Step 6: Final answer
    x = 111,582.92

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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.