Home / 115,138.08-172,661.76-55,956.24

Finding the Fourth Proportional to 115,138.08, 172,661.76 and 55,956.24

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Solution

The fourth proportional to 115,138.08, 172,661.76 and 55,956.24 is: 83,912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,138.08 : 172,661.76 = 55,956.24 : x
  2. Step 2: Convert to fraction form
    115,138.08/172,661.76 = 55,956.24/x
  3. Step 3: Cross multiply
    115,138.08x = 172,661.76 × 55,956.24
  4. Step 4: Simplify right side
    115,138.08x = 9,661,502,881.38
  5. Step 5: Solve for x
    x = 9,661,502,881.38/115,138.08
  6. Step 6: Final answer
    x = 83,912.32

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1.5x scale

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.