Home / 115,501.04-159,390.96-65,199.68

Finding the Fourth Proportional to 115,501.04, 159,390.96 and 65,199.68

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Solution

The fourth proportional to 115,501.04, 159,390.96 and 65,199.68 is: 89,975.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,501.04 : 159,390.96 = 65,199.68 : x
  2. Step 2: Convert to fraction form
    115,501.04/159,390.96 = 65,199.68/x
  3. Step 3: Cross multiply
    115,501.04x = 159,390.96 × 65,199.68
  4. Step 4: Simplify right side
    115,501.04x = 10,392,239,586.89
  5. Step 5: Solve for x
    x = 10,392,239,586.89/115,501.04
  6. Step 6: Final answer
    x = 89,975.29

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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.