Home / 130,422.12-179,989.28-73,058.10

Finding the Fourth Proportional to 130,422.12, 179,989.28 and 73,058.10

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Solution

The fourth proportional to 130,422.12, 179,989.28 and 73,058.10 is: 100,823.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,422.12 : 179,989.28 = 73,058.10 : x
  2. Step 2: Convert to fraction form
    130,422.12/179,989.28 = 73,058.10/x
  3. Step 3: Cross multiply
    130,422.12x = 179,989.28 × 73,058.10
  4. Step 4: Simplify right side
    130,422.12x = 13,149,674,451.88
  5. Step 5: Solve for x
    x = 13,149,674,451.88/130,422.12
  6. Step 6: Final answer
    x = 100,823.96

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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.