Home / 155,698.35-214,864.38-87,716.13

Finding the Fourth Proportional to 155,698.35, 214,864.38 and 87,716.13

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Solution

The fourth proportional to 155,698.35, 214,864.38 and 87,716.13 is: 121,048.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,698.35 : 214,864.38 = 87,716.13 : x
  2. Step 2: Convert to fraction form
    155,698.35/214,864.38 = 87,716.13/x
  3. Step 3: Cross multiply
    155,698.35x = 214,864.38 × 87,716.13
  4. Step 4: Simplify right side
    155,698.35x = 18,847,071,888.45
  5. Step 5: Solve for x
    x = 18,847,071,888.45/155,698.35
  6. Step 6: Final answer
    x = 121,048.63

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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.