Home / 115,275.31-159,055.87-69,977.14

Finding the Fourth Proportional to 115,275.31, 159,055.87 and 69,977.14

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Solution

The fourth proportional to 115,275.31, 159,055.87 and 69,977.14 is: 96,553.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,275.31 : 159,055.87 = 69,977.14 : x
  2. Step 2: Convert to fraction form
    115,275.31/159,055.87 = 69,977.14/x
  3. Step 3: Cross multiply
    115,275.31x = 159,055.87 × 69,977.14
  4. Step 4: Simplify right side
    115,275.31x = 11,130,274,707.87
  5. Step 5: Solve for x
    x = 11,130,274,707.87/115,275.31
  6. Step 6: Final answer
    x = 96,553.85

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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.