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Finding the Fourth Proportional to 130,076.44, 179,501.80 and 76,360.60

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Solution

The fourth proportional to 130,076.44, 179,501.80 and 76,360.60 is: 105,375.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,076.44 : 179,501.80 = 76,360.60 : x
  2. Step 2: Convert to fraction form
    130,076.44/179,501.80 = 76,360.60/x
  3. Step 3: Cross multiply
    130,076.44x = 179,501.80 × 76,360.60
  4. Step 4: Simplify right side
    130,076.44x = 13,706,865,149.08
  5. Step 5: Solve for x
    x = 13,706,865,149.08/130,076.44
  6. Step 6: Final answer
    x = 105,375.46

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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.