Home / 105,484.76-145,556.16-84,029.15

Finding the Fourth Proportional to 105,484.76, 145,556.16 and 84,029.15

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Solution

The fourth proportional to 105,484.76, 145,556.16 and 84,029.15 is: 115,950.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,484.76 : 145,556.16 = 84,029.15 : x
  2. Step 2: Convert to fraction form
    105,484.76/145,556.16 = 84,029.15/x
  3. Step 3: Cross multiply
    105,484.76x = 145,556.16 × 84,029.15
  4. Step 4: Simplify right side
    105,484.76x = 12,230,960,341.09
  5. Step 5: Solve for x
    x = 12,230,960,341.09/105,484.76
  6. Step 6: Final answer
    x = 115,950.03

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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.