Home / 129,018.08-193,582.56-69,896

Finding the Fourth Proportional to 129,018.08, 193,582.56 and 69,896

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Solution

The fourth proportional to 129,018.08, 193,582.56 and 69,896 is: 104,874.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,018.08 : 193,582.56 = 69,896 : x
  2. Step 2: Convert to fraction form
    129,018.08/193,582.56 = 69,896/x
  3. Step 3: Cross multiply
    129,018.08x = 193,582.56 × 69,896
  4. Step 4: Simplify right side
    129,018.08x = 13,530,646,613.76
  5. Step 5: Solve for x
    x = 13,530,646,613.76/129,018.08
  6. Step 6: Final answer
    x = 104,874.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.