Home / 130,555.68-180,150.84-73,181.76

Finding the Fourth Proportional to 130,555.68, 180,150.84 and 73,181.76

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Solution

The fourth proportional to 130,555.68, 180,150.84 and 73,181.76 is: 100,981.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,555.68 : 180,150.84 = 73,181.76 : x
  2. Step 2: Convert to fraction form
    130,555.68/180,150.84 = 73,181.76/x
  3. Step 3: Cross multiply
    130,555.68x = 180,150.84 × 73,181.76
  4. Step 4: Simplify right side
    130,555.68x = 13,183,755,536.68
  5. Step 5: Solve for x
    x = 13,183,755,536.68/130,555.68
  6. Step 6: Final answer
    x = 100,981.86

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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.