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Finding the Fourth Proportional to 130,371.88, 179,903.10 and 73,787.08

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Solution

The fourth proportional to 130,371.88, 179,903.10 and 73,787.08 is: 101,820.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,371.88 : 179,903.10 = 73,787.08 : x
  2. Step 2: Convert to fraction form
    130,371.88/179,903.10 = 73,787.08/x
  3. Step 3: Cross multiply
    130,371.88x = 179,903.10 × 73,787.08
  4. Step 4: Simplify right side
    130,371.88x = 13,274,524,431.95
  5. Step 5: Solve for x
    x = 13,274,524,431.95/130,371.88
  6. Step 6: Final answer
    x = 101,820.46

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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.