Home / 134,208.78-185,211.70-72,959.10

Finding the Fourth Proportional to 134,208.78, 185,211.70 and 72,959.10

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Solution

The fourth proportional to 134,208.78, 185,211.70 and 72,959.10 is: 100,685.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,208.78 : 185,211.70 = 72,959.10 : x
  2. Step 2: Convert to fraction form
    134,208.78/185,211.70 = 72,959.10/x
  3. Step 3: Cross multiply
    134,208.78x = 185,211.70 × 72,959.10
  4. Step 4: Simplify right side
    134,208.78x = 13,512,878,759.07
  5. Step 5: Solve for x
    x = 13,512,878,759.07/134,208.78
  6. Step 6: Final answer
    x = 100,685.50

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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.