Home / 103,320.60-154,960.49-28,421.42

Finding the Fourth Proportional to 103,320.60, 154,960.49 and 28,421.42

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Solution

The fourth proportional to 103,320.60, 154,960.49 and 28,421.42 is: 42,626.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,320.60 : 154,960.49 = 28,421.42 : x
  2. Step 2: Convert to fraction form
    103,320.60/154,960.49 = 28,421.42/x
  3. Step 3: Cross multiply
    103,320.60x = 154,960.49 × 28,421.42
  4. Step 4: Simplify right side
    103,320.60x = 4,404,196,465.95
  5. Step 5: Solve for x
    x = 4,404,196,465.95/103,320.60
  6. Step 6: Final answer
    x = 42,626.51

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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.