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Finding the Fourth Proportional to 172,670.96, 238,268.76 and 127,373.42

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Solution

The fourth proportional to 172,670.96, 238,268.76 and 127,373.42 is: 175,762.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,670.96 : 238,268.76 = 127,373.42 : x
  2. Step 2: Convert to fraction form
    172,670.96/238,268.76 = 127,373.42/x
  3. Step 3: Cross multiply
    172,670.96x = 238,268.76 × 127,373.42
  4. Step 4: Simplify right side
    172,670.96x = 30,349,106,840.36
  5. Step 5: Solve for x
    x = 30,349,106,840.36/172,670.96
  6. Step 6: Final answer
    x = 175,762.66

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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.