Home / 145,619.48-200,992.86-89,078.24

Finding the Fourth Proportional to 145,619.48, 200,992.86 and 89,078.24

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Solution

The fourth proportional to 145,619.48, 200,992.86 and 89,078.24 is: 122,951.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,619.48 : 200,992.86 = 89,078.24 : x
  2. Step 2: Convert to fraction form
    145,619.48/200,992.86 = 89,078.24/x
  3. Step 3: Cross multiply
    145,619.48x = 200,992.86 × 89,078.24
  4. Step 4: Simplify right side
    145,619.48x = 17,904,090,221.37
  5. Step 5: Solve for x
    x = 17,904,090,221.37/145,619.48
  6. Step 6: Final answer
    x = 122,951.20

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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.