Home / 138,485.94-207,457.75-123,423.32

Finding the Fourth Proportional to 138,485.94, 207,457.75 and 123,423.32

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Solution

The fourth proportional to 138,485.94, 207,457.75 and 123,423.32 is: 184,893.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,485.94 : 207,457.75 = 123,423.32 : x
  2. Step 2: Convert to fraction form
    138,485.94/207,457.75 = 123,423.32/x
  3. Step 3: Cross multiply
    138,485.94x = 207,457.75 × 123,423.32
  4. Step 4: Simplify right side
    138,485.94x = 25,605,124,937.65
  5. Step 5: Solve for x
    x = 25,605,124,937.65/138,485.94
  6. Step 6: Final answer
    x = 184,893.32

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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.