Home / 103,629.35-155,674.43-100,864.55

Finding the Fourth Proportional to 103,629.35, 155,674.43 and 100,864.55

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Solution

The fourth proportional to 103,629.35, 155,674.43 and 100,864.55 is: 151,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.35 : 155,674.43 = 100,864.55 : x
  2. Step 2: Convert to fraction form
    103,629.35/155,674.43 = 100,864.55/x
  3. Step 3: Cross multiply
    103,629.35x = 155,674.43 × 100,864.55
  4. Step 4: Simplify right side
    103,629.35x = 15,702,031,328.46
  5. Step 5: Solve for x
    x = 15,702,031,328.46/103,629.35
  6. Step 6: Final answer
    x = 151,521.08

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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.