Home / 132,904.34-183,412.40-72,478.28

Finding the Fourth Proportional to 132,904.34, 183,412.40 and 72,478.28

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Solution

The fourth proportional to 132,904.34, 183,412.40 and 72,478.28 is: 100,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,904.34 : 183,412.40 = 72,478.28 : x
  2. Step 2: Convert to fraction form
    132,904.34/183,412.40 = 72,478.28/x
  3. Step 3: Cross multiply
    132,904.34x = 183,412.40 × 72,478.28
  4. Step 4: Simplify right side
    132,904.34x = 13,293,414,003.22
  5. Step 5: Solve for x
    x = 13,293,414,003.22/132,904.34
  6. Step 6: Final answer
    x = 100,022.43

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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.