Home / 103,740.66-155,512.56-51,088.65

Finding the Fourth Proportional to 103,740.66, 155,512.56 and 51,088.65

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Solution

The fourth proportional to 103,740.66, 155,512.56 and 51,088.65 is: 76,584.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,740.66 : 155,512.56 = 51,088.65 : x
  2. Step 2: Convert to fraction form
    103,740.66/155,512.56 = 51,088.65/x
  3. Step 3: Cross multiply
    103,740.66x = 155,512.56 × 51,088.65
  4. Step 4: Simplify right side
    103,740.66x = 7,944,926,748.44
  5. Step 5: Solve for x
    x = 7,944,926,748.44/103,740.66
  6. Step 6: Final answer
    x = 76,584.50

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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.