Home / 104,130.30-143,699.89-56,383.68

Finding the Fourth Proportional to 104,130.30, 143,699.89 and 56,383.68

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Solution

The fourth proportional to 104,130.30, 143,699.89 and 56,383.68 is: 77,809.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,130.30 : 143,699.89 = 56,383.68 : x
  2. Step 2: Convert to fraction form
    104,130.30/143,699.89 = 56,383.68/x
  3. Step 3: Cross multiply
    104,130.30x = 143,699.89 × 56,383.68
  4. Step 4: Simplify right side
    104,130.30x = 8,102,328,613.80
  5. Step 5: Solve for x
    x = 8,102,328,613.80/104,130.30
  6. Step 6: Final answer
    x = 77,809.52

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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.