Home / 103,340.13-155,011.03-28,464.40

Finding the Fourth Proportional to 103,340.13, 155,011.03 and 28,464.40

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Solution

The fourth proportional to 103,340.13, 155,011.03 and 28,464.40 is: 42,696.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,340.13 : 155,011.03 = 28,464.40 : x
  2. Step 2: Convert to fraction form
    103,340.13/155,011.03 = 28,464.40/x
  3. Step 3: Cross multiply
    103,340.13x = 155,011.03 × 28,464.40
  4. Step 4: Simplify right side
    103,340.13x = 4,412,296,084.93
  5. Step 5: Solve for x
    x = 4,412,296,084.93/103,340.13
  6. Step 6: Final answer
    x = 42,696.83

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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.