Home / 130,795.68-180,494.64-76,358.28

Finding the Fourth Proportional to 130,795.68, 180,494.64 and 76,358.28

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Solution

The fourth proportional to 130,795.68, 180,494.64 and 76,358.28 is: 105,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,795.68 : 180,494.64 = 76,358.28 : x
  2. Step 2: Convert to fraction form
    130,795.68/180,494.64 = 76,358.28/x
  3. Step 3: Cross multiply
    130,795.68x = 180,494.64 × 76,358.28
  4. Step 4: Simplify right side
    130,795.68x = 13,782,260,259.62
  5. Step 5: Solve for x
    x = 13,782,260,259.62/130,795.68
  6. Step 6: Final answer
    x = 105,372.44

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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.