Home / 130,475.70-180,053.42-76,764.17

Finding the Fourth Proportional to 130,475.70, 180,053.42 and 76,764.17

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Solution

The fourth proportional to 130,475.70, 180,053.42 and 76,764.17 is: 105,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,475.70 : 180,053.42 = 76,764.17 : x
  2. Step 2: Convert to fraction form
    130,475.70/180,053.42 = 76,764.17/x
  3. Step 3: Cross multiply
    130,475.70x = 180,053.42 × 76,764.17
  4. Step 4: Simplify right side
    130,475.70x = 13,821,651,408.27
  5. Step 5: Solve for x
    x = 13,821,651,408.27/130,475.70
  6. Step 6: Final answer
    x = 105,932.76

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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.