Home / 130,747.41-180,425.73-72,600.54

Finding the Fourth Proportional to 130,747.41, 180,425.73 and 72,600.54

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Solution

The fourth proportional to 130,747.41, 180,425.73 and 72,600.54 is: 100,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,747.41 : 180,425.73 = 72,600.54 : x
  2. Step 2: Convert to fraction form
    130,747.41/180,425.73 = 72,600.54/x
  3. Step 3: Cross multiply
    130,747.41x = 180,425.73 × 72,600.54
  4. Step 4: Simplify right side
    130,747.41x = 13,099,005,427.89
  5. Step 5: Solve for x
    x = 13,099,005,427.89/130,747.41
  6. Step 6: Final answer
    x = 100,185.58

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1.5x scale

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.