Home / 144,971.19-200,060.96-81,312.39

Finding the Fourth Proportional to 144,971.19, 200,060.96 and 81,312.39

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Solution

The fourth proportional to 144,971.19, 200,060.96 and 81,312.39 is: 112,211.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,971.19 : 200,060.96 = 81,312.39 : x
  2. Step 2: Convert to fraction form
    144,971.19/200,060.96 = 81,312.39/x
  3. Step 3: Cross multiply
    144,971.19x = 200,060.96 × 81,312.39
  4. Step 4: Simplify right side
    144,971.19x = 16,267,434,396.73
  5. Step 5: Solve for x
    x = 16,267,434,396.73/144,971.19
  6. Step 6: Final answer
    x = 112,211.50

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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.