Home / 132,904.80-183,656.16-102,772.80

Finding the Fourth Proportional to 132,904.80, 183,656.16 and 102,772.80

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Solution

The fourth proportional to 132,904.80, 183,656.16 and 102,772.80 is: 142,017.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,904.80 : 183,656.16 = 102,772.80 : x
  2. Step 2: Convert to fraction form
    132,904.80/183,656.16 = 102,772.80/x
  3. Step 3: Cross multiply
    132,904.80x = 183,656.16 × 102,772.80
  4. Step 4: Simplify right side
    132,904.80x = 18,874,857,800.45
  5. Step 5: Solve for x
    x = 18,874,857,800.45/132,904.80
  6. Step 6: Final answer
    x = 142,017.88

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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.