Home / 104,178.03-144,045.18-99,388.50

Finding the Fourth Proportional to 104,178.03, 144,045.18 and 99,388.50

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Solution

The fourth proportional to 104,178.03, 144,045.18 and 99,388.50 is: 137,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,178.03 : 144,045.18 = 99,388.50 : x
  2. Step 2: Convert to fraction form
    104,178.03/144,045.18 = 99,388.50/x
  3. Step 3: Cross multiply
    104,178.03x = 144,045.18 × 99,388.50
  4. Step 4: Simplify right side
    104,178.03x = 14,316,434,372.43
  5. Step 5: Solve for x
    x = 14,316,434,372.43/104,178.03
  6. Step 6: Final answer
    x = 137,422.78

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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.