Home / 130,956.69-180,715.44-80,054.67

Finding the Fourth Proportional to 130,956.69, 180,715.44 and 80,054.67

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Solution

The fourth proportional to 130,956.69, 180,715.44 and 80,054.67 is: 110,472.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,956.69 : 180,715.44 = 80,054.67 : x
  2. Step 2: Convert to fraction form
    130,956.69/180,715.44 = 80,054.67/x
  3. Step 3: Cross multiply
    130,956.69x = 180,715.44 × 80,054.67
  4. Step 4: Simplify right side
    130,956.69x = 14,467,114,913.10
  5. Step 5: Solve for x
    x = 14,467,114,913.10/130,956.69
  6. Step 6: Final answer
    x = 110,472.52

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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.