Home / 115,769.76-159,609.11-83,477.35

Finding the Fourth Proportional to 115,769.76, 159,609.11 and 83,477.35

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Solution

The fourth proportional to 115,769.76, 159,609.11 and 83,477.35 is: 115,088.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,769.76 : 159,609.11 = 83,477.35 : x
  2. Step 2: Convert to fraction form
    115,769.76/159,609.11 = 83,477.35/x
  3. Step 3: Cross multiply
    115,769.76x = 159,609.11 × 83,477.35
  4. Step 4: Simplify right side
    115,769.76x = 13,323,745,538.66
  5. Step 5: Solve for x
    x = 13,323,745,538.66/115,769.76
  6. Step 6: Final answer
    x = 115,088.31

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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.