Home / 115,346.28-159,078.42-75,045.32

Finding the Fourth Proportional to 115,346.28, 159,078.42 and 75,045.32

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Solution

The fourth proportional to 115,346.28, 159,078.42 and 75,045.32 is: 103,497.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,346.28 : 159,078.42 = 75,045.32 : x
  2. Step 2: Convert to fraction form
    115,346.28/159,078.42 = 75,045.32/x
  3. Step 3: Cross multiply
    115,346.28x = 159,078.42 × 75,045.32
  4. Step 4: Simplify right side
    115,346.28x = 11,938,090,933.99
  5. Step 5: Solve for x
    x = 11,938,090,933.99/115,346.28
  6. Step 6: Final answer
    x = 103,497.84

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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.