Home / 103,206.88-154,810.48-28,328.04

Finding the Fourth Proportional to 103,206.88, 154,810.48 and 28,328.04

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Solution

The fourth proportional to 103,206.88, 154,810.48 and 28,328.04 is: 42,492.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,206.88 : 154,810.48 = 28,328.04 : x
  2. Step 2: Convert to fraction form
    103,206.88/154,810.48 = 28,328.04/x
  3. Step 3: Cross multiply
    103,206.88x = 154,810.48 × 28,328.04
  4. Step 4: Simplify right side
    103,206.88x = 4,385,477,469.86
  5. Step 5: Solve for x
    x = 4,385,477,469.86/103,206.88
  6. Step 6: Final answer
    x = 42,492.10

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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.