Home / 115,261.14-159,039.93-64,269.81

Finding the Fourth Proportional to 115,261.14, 159,039.93 and 64,269.81

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Solution

The fourth proportional to 115,261.14, 159,039.93 and 64,269.81 is: 88,680.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,261.14 : 159,039.93 = 64,269.81 : x
  2. Step 2: Convert to fraction form
    115,261.14/159,039.93 = 64,269.81/x
  3. Step 3: Cross multiply
    115,261.14x = 159,039.93 × 64,269.81
  4. Step 4: Simplify right side
    115,261.14x = 10,221,466,083.51
  5. Step 5: Solve for x
    x = 10,221,466,083.51/115,261.14
  6. Step 6: Final answer
    x = 88,680.94

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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.