Home / 115,345.27-159,077.07-75,044.33

Finding the Fourth Proportional to 115,345.27, 159,077.07 and 75,044.33

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Solution

The fourth proportional to 115,345.27, 159,077.07 and 75,044.33 is: 103,496.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,345.27 : 159,077.07 = 75,044.33 : x
  2. Step 2: Convert to fraction form
    115,345.27/159,077.07 = 75,044.33/x
  3. Step 3: Cross multiply
    115,345.27x = 159,077.07 × 75,044.33
  4. Step 4: Simplify right side
    115,345.27x = 11,937,831,341.13
  5. Step 5: Solve for x
    x = 11,937,831,341.13/115,345.27
  6. Step 6: Final answer
    x = 103,496.50

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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.