Home / 130,768.56-180,466.61-72,625.56

Finding the Fourth Proportional to 130,768.56, 180,466.61 and 72,625.56

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Solution

The fourth proportional to 130,768.56, 180,466.61 and 72,625.56 is: 100,226.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,768.56 : 180,466.61 = 72,625.56 : x
  2. Step 2: Convert to fraction form
    130,768.56/180,466.61 = 72,625.56/x
  3. Step 3: Cross multiply
    130,768.56x = 180,466.61 × 72,625.56
  4. Step 4: Simplify right side
    130,768.56x = 13,106,488,612.55
  5. Step 5: Solve for x
    x = 13,106,488,612.55/130,768.56
  6. Step 6: Final answer
    x = 100,226.60

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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.