Home / 132,821.50-183,293.81-72,392.20

Finding the Fourth Proportional to 132,821.50, 183,293.81 and 72,392.20

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Solution

The fourth proportional to 132,821.50, 183,293.81 and 72,392.20 is: 99,901.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,821.50 : 183,293.81 = 72,392.20 : x
  2. Step 2: Convert to fraction form
    132,821.50/183,293.81 = 72,392.20/x
  3. Step 3: Cross multiply
    132,821.50x = 183,293.81 × 72,392.20
  4. Step 4: Simplify right side
    132,821.50x = 13,269,042,152.28
  5. Step 5: Solve for x
    x = 13,269,042,152.28/132,821.50
  6. Step 6: Final answer
    x = 99,901.31

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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.