Home / 145,384.77-200,629.91-80,854.61

Finding the Fourth Proportional to 145,384.77, 200,629.91 and 80,854.61

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Solution

The fourth proportional to 145,384.77, 200,629.91 and 80,854.61 is: 111,578.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,384.77 : 200,629.91 = 80,854.61 : x
  2. Step 2: Convert to fraction form
    145,384.77/200,629.91 = 80,854.61/x
  3. Step 3: Cross multiply
    145,384.77x = 200,629.91 × 80,854.61
  4. Step 4: Simplify right side
    145,384.77x = 16,221,852,326.37
  5. Step 5: Solve for x
    x = 16,221,852,326.37/145,384.77
  6. Step 6: Final answer
    x = 111,578.76

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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.