Home / 115,140.69-172,461.06-55,851.75

Finding the Fourth Proportional to 115,140.69, 172,461.06 and 55,851.75

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Solution

The fourth proportional to 115,140.69, 172,461.06 and 55,851.75 is: 83,656.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,140.69 : 172,461.06 = 55,851.75 : x
  2. Step 2: Convert to fraction form
    115,140.69/172,461.06 = 55,851.75/x
  3. Step 3: Cross multiply
    115,140.69x = 172,461.06 × 55,851.75
  4. Step 4: Simplify right side
    115,140.69x = 9,632,252,007.86
  5. Step 5: Solve for x
    x = 9,632,252,007.86/115,140.69
  6. Step 6: Final answer
    x = 83,656.37

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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.