Home / 115,971.40-174,021.90-49,400.20

Finding the Fourth Proportional to 115,971.40, 174,021.90 and 49,400.20

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Solution

The fourth proportional to 115,971.40, 174,021.90 and 49,400.20 is: 74,127.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,971.40 : 174,021.90 = 49,400.20 : x
  2. Step 2: Convert to fraction form
    115,971.40/174,021.90 = 49,400.20/x
  3. Step 3: Cross multiply
    115,971.40x = 174,021.90 × 49,400.20
  4. Step 4: Simplify right side
    115,971.40x = 8,596,716,664.38
  5. Step 5: Solve for x
    x = 8,596,716,664.38/115,971.40
  6. Step 6: Final answer
    x = 74,127.90

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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.