Home / 172,800.18-238,306.09-118,431.36

Finding the Fourth Proportional to 172,800.18, 238,306.09 and 118,431.36

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Solution

The fourth proportional to 172,800.18, 238,306.09 and 118,431.36 is: 163,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,800.18 : 238,306.09 = 118,431.36 : x
  2. Step 2: Convert to fraction form
    172,800.18/238,306.09 = 118,431.36/x
  3. Step 3: Cross multiply
    172,800.18x = 238,306.09 × 118,431.36
  4. Step 4: Simplify right side
    172,800.18x = 28,222,914,334.98
  5. Step 5: Solve for x
    x = 28,222,914,334.98/172,800.18
  6. Step 6: Final answer
    x = 163,326.88

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1.5x scale

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.