Home / 98,213.31-147,363.71-51,455.25

Finding the Fourth Proportional to 98,213.31, 147,363.71 and 51,455.25

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Solution

The fourth proportional to 98,213.31, 147,363.71 and 51,455.25 is: 77,205.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,213.31 : 147,363.71 = 51,455.25 : x
  2. Step 2: Convert to fraction form
    98,213.31/147,363.71 = 51,455.25/x
  3. Step 3: Cross multiply
    98,213.31x = 147,363.71 × 51,455.25
  4. Step 4: Simplify right side
    98,213.31x = 7,582,636,281.70
  5. Step 5: Solve for x
    x = 7,582,636,281.70/98,213.31
  6. Step 6: Final answer
    x = 77,205.79

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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.