Home / 115,440.30-172,832.40-102,318.30

Finding the Fourth Proportional to 115,440.30, 172,832.40 and 102,318.30

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Solution

The fourth proportional to 115,440.30, 172,832.40 and 102,318.30 is: 153,186.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,440.30 : 172,832.40 = 102,318.30 : x
  2. Step 2: Convert to fraction form
    115,440.30/172,832.40 = 102,318.30/x
  3. Step 3: Cross multiply
    115,440.30x = 172,832.40 × 102,318.30
  4. Step 4: Simplify right side
    115,440.30x = 17,683,917,352.92
  5. Step 5: Solve for x
    x = 17,683,917,352.92/115,440.30
  6. Step 6: Final answer
    x = 153,186.69

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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.