Home / 103,953.81-143,456.06-58,631.65

Finding the Fourth Proportional to 103,953.81, 143,456.06 and 58,631.65

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Solution

The fourth proportional to 103,953.81, 143,456.06 and 58,631.65 is: 80,911.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,953.81 : 143,456.06 = 58,631.65 : x
  2. Step 2: Convert to fraction form
    103,953.81/143,456.06 = 58,631.65/x
  3. Step 3: Cross multiply
    103,953.81x = 143,456.06 × 58,631.65
  4. Step 4: Simplify right side
    103,953.81x = 8,411,064,917.21
  5. Step 5: Solve for x
    x = 8,411,064,917.21/103,953.81
  6. Step 6: Final answer
    x = 80,911.56

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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.