Home / 96,678.36-145,017.53-30,123.87

Finding the Fourth Proportional to 96,678.36, 145,017.53 and 30,123.87

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Solution

The fourth proportional to 96,678.36, 145,017.53 and 30,123.87 is: 45,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,678.36 : 145,017.53 = 30,123.87 : x
  2. Step 2: Convert to fraction form
    96,678.36/145,017.53 = 30,123.87/x
  3. Step 3: Cross multiply
    96,678.36x = 145,017.53 × 30,123.87
  4. Step 4: Simplify right side
    96,678.36x = 4,368,489,221.44
  5. Step 5: Solve for x
    x = 4,368,489,221.44/96,678.36
  6. Step 6: Final answer
    x = 45,185.80

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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.