Home / 145,389.03-218,083.28-45,556.88

Finding the Fourth Proportional to 145,389.03, 218,083.28 and 45,556.88

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Solution

The fourth proportional to 145,389.03, 218,083.28 and 45,556.88 is: 68,335.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,389.03 : 218,083.28 = 45,556.88 : x
  2. Step 2: Convert to fraction form
    145,389.03/218,083.28 = 45,556.88/x
  3. Step 3: Cross multiply
    145,389.03x = 218,083.28 × 45,556.88
  4. Step 4: Simplify right side
    145,389.03x = 9,935,192,498.77
  5. Step 5: Solve for x
    x = 9,935,192,498.77/145,389.03
  6. Step 6: Final answer
    x = 68,335.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.