Home / 98,265.74-147,373.09-28,128.65

Finding the Fourth Proportional to 98,265.74, 147,373.09 and 28,128.65

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Solution

The fourth proportional to 98,265.74, 147,373.09 and 28,128.65 is: 42,185.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,265.74 : 147,373.09 = 28,128.65 : x
  2. Step 2: Convert to fraction form
    98,265.74/147,373.09 = 28,128.65/x
  3. Step 3: Cross multiply
    98,265.74x = 147,373.09 × 28,128.65
  4. Step 4: Simplify right side
    98,265.74x = 4,145,405,260.84
  5. Step 5: Solve for x
    x = 4,145,405,260.84/98,265.74
  6. Step 6: Final answer
    x = 42,185.66

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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.