Home / 155,055.35-213,999.81-94,661.21

Finding the Fourth Proportional to 155,055.35, 213,999.81 and 94,661.21

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Solution

The fourth proportional to 155,055.35, 213,999.81 and 94,661.21 is: 130,646.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,055.35 : 213,999.81 = 94,661.21 : x
  2. Step 2: Convert to fraction form
    155,055.35/213,999.81 = 94,661.21/x
  3. Step 3: Cross multiply
    155,055.35x = 213,999.81 × 94,661.21
  4. Step 4: Simplify right side
    155,055.35x = 20,257,481,134.39
  5. Step 5: Solve for x
    x = 20,257,481,134.39/155,055.35
  6. Step 6: Final answer
    x = 130,646.77

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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.