Home / 145,495.34-200,767.92-81,819.62

Finding the Fourth Proportional to 145,495.34, 200,767.92 and 81,819.62

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Solution

The fourth proportional to 145,495.34, 200,767.92 and 81,819.62 is: 112,902.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,495.34 : 200,767.92 = 81,819.62 : x
  2. Step 2: Convert to fraction form
    145,495.34/200,767.92 = 81,819.62/x
  3. Step 3: Cross multiply
    145,495.34x = 200,767.92 × 81,819.62
  4. Step 4: Simplify right side
    145,495.34x = 16,426,754,922.59
  5. Step 5: Solve for x
    x = 16,426,754,922.59/145,495.34
  6. Step 6: Final answer
    x = 112,902.28

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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.