Home / 115,995.36-160,133.07-71,309.28

Finding the Fourth Proportional to 115,995.36, 160,133.07 and 71,309.28

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Solution

The fourth proportional to 115,995.36, 160,133.07 and 71,309.28 is: 98,443.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,995.36 : 160,133.07 = 71,309.28 : x
  2. Step 2: Convert to fraction form
    115,995.36/160,133.07 = 71,309.28/x
  3. Step 3: Cross multiply
    115,995.36x = 160,133.07 × 71,309.28
  4. Step 4: Simplify right side
    115,995.36x = 11,418,973,925.89
  5. Step 5: Solve for x
    x = 11,418,973,925.89/115,995.36
  6. Step 6: Final answer
    x = 98,443.37

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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.