Home / 115,095.40-172,667.74-65,199.08

Finding the Fourth Proportional to 115,095.40, 172,667.74 and 65,199.08

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Solution

The fourth proportional to 115,095.40, 172,667.74 and 65,199.08 is: 97,812.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,095.40 : 172,667.74 = 65,199.08 : x
  2. Step 2: Convert to fraction form
    115,095.40/172,667.74 = 65,199.08/x
  3. Step 3: Cross multiply
    115,095.40x = 172,667.74 × 65,199.08
  4. Step 4: Simplify right side
    115,095.40x = 11,257,777,793.68
  5. Step 5: Solve for x
    x = 11,257,777,793.68/115,095.40
  6. Step 6: Final answer
    x = 97,812.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.