Home / 115,107.36-172,580.62-51,030.66

Finding the Fourth Proportional to 115,107.36, 172,580.62 and 51,030.66

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Solution

The fourth proportional to 115,107.36, 172,580.62 and 51,030.66 is: 76,510.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,107.36 : 172,580.62 = 51,030.66 : x
  2. Step 2: Convert to fraction form
    115,107.36/172,580.62 = 51,030.66/x
  3. Step 3: Cross multiply
    115,107.36x = 172,580.62 × 51,030.66
  4. Step 4: Simplify right side
    115,107.36x = 8,806,902,941.81
  5. Step 5: Solve for x
    x = 8,806,902,941.81/115,107.36
  6. Step 6: Final answer
    x = 76,510.34

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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.