Home / 102,989.51-154,057.72-96,690.95

Finding the Fourth Proportional to 102,989.51, 154,057.72 and 96,690.95

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Solution

The fourth proportional to 102,989.51, 154,057.72 and 96,690.95 is: 144,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,989.51 : 154,057.72 = 96,690.95 : x
  2. Step 2: Convert to fraction form
    102,989.51/154,057.72 = 96,690.95/x
  3. Step 3: Cross multiply
    102,989.51x = 154,057.72 × 96,690.95
  4. Step 4: Simplify right side
    102,989.51x = 14,895,987,301.63
  5. Step 5: Solve for x
    x = 14,895,987,301.63/102,989.51
  6. Step 6: Final answer
    x = 144,635.97

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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.