Home / 130,049.12-179,355.48-84,710

Finding the Fourth Proportional to 130,049.12, 179,355.48 and 84,710

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Solution

The fourth proportional to 130,049.12, 179,355.48 and 84,710 is: 116,826.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,049.12 : 179,355.48 = 84,710 : x
  2. Step 2: Convert to fraction form
    130,049.12/179,355.48 = 84,710/x
  3. Step 3: Cross multiply
    130,049.12x = 179,355.48 × 84,710
  4. Step 4: Simplify right side
    130,049.12x = 15,193,202,710.80
  5. Step 5: Solve for x
    x = 15,193,202,710.80/130,049.12
  6. Step 6: Final answer
    x = 116,826.65

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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.