Home / 98,333.10-147,498.69-28,212.78

Finding the Fourth Proportional to 98,333.10, 147,498.69 and 28,212.78

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Solution

The fourth proportional to 98,333.10, 147,498.69 and 28,212.78 is: 42,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,333.10 : 147,498.69 = 28,212.78 : x
  2. Step 2: Convert to fraction form
    98,333.10/147,498.69 = 28,212.78/x
  3. Step 3: Cross multiply
    98,333.10x = 147,498.69 × 28,212.78
  4. Step 4: Simplify right side
    98,333.10x = 4,161,348,091.26
  5. Step 5: Solve for x
    x = 4,161,348,091.26/98,333.10
  6. Step 6: Final answer
    x = 42,318.89

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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.