Home / 100,973.13-139,342.93-58,556.27

Finding the Fourth Proportional to 100,973.13, 139,342.93 and 58,556.27

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Solution

The fourth proportional to 100,973.13, 139,342.93 and 58,556.27 is: 80,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,973.13 : 139,342.93 = 58,556.27 : x
  2. Step 2: Convert to fraction form
    100,973.13/139,342.93 = 58,556.27/x
  3. Step 3: Cross multiply
    100,973.13x = 139,342.93 × 58,556.27
  4. Step 4: Simplify right side
    100,973.13x = 8,159,401,388.57
  5. Step 5: Solve for x
    x = 8,159,401,388.57/100,973.13
  6. Step 6: Final answer
    x = 80,807.65

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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.