Home / 103,342.38-155,014.40-28,466.65

Finding the Fourth Proportional to 103,342.38, 155,014.40 and 28,466.65

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Solution

The fourth proportional to 103,342.38, 155,014.40 and 28,466.65 is: 42,700.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,342.38 : 155,014.40 = 28,466.65 : x
  2. Step 2: Convert to fraction form
    103,342.38/155,014.40 = 28,466.65/x
  3. Step 3: Cross multiply
    103,342.38x = 155,014.40 × 28,466.65
  4. Step 4: Simplify right side
    103,342.38x = 4,412,740,934.69
  5. Step 5: Solve for x
    x = 4,412,740,934.69/103,342.38
  6. Step 6: Final answer
    x = 42,700.21

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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.