Home / 325,112.57-487,547.89-111,820.61

Finding the Fourth Proportional to 325,112.57, 487,547.89 and 111,820.61

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Solution

The fourth proportional to 325,112.57, 487,547.89 and 111,820.61 is: 167,689.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,112.57 : 487,547.89 = 111,820.61 : x
  2. Step 2: Convert to fraction form
    325,112.57/487,547.89 = 111,820.61/x
  3. Step 3: Cross multiply
    325,112.57x = 487,547.89 × 111,820.61
  4. Step 4: Simplify right side
    325,112.57x = 54,517,903,403.33
  5. Step 5: Solve for x
    x = 54,517,903,403.33/325,112.57
  6. Step 6: Final answer
    x = 167,689.31

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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.