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Finding the Fourth Proportional to 180,156.74, 248,641 and 103,674.26

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Solution

The fourth proportional to 180,156.74, 248,641 and 103,674.26 is: 143,084.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,156.74 : 248,641 = 103,674.26 : x
  2. Step 2: Convert to fraction form
    180,156.74/248,641 = 103,674.26/x
  3. Step 3: Cross multiply
    180,156.74x = 248,641 × 103,674.26
  4. Step 4: Simplify right side
    180,156.74x = 25,777,671,680.66
  5. Step 5: Solve for x
    x = 25,777,671,680.66/180,156.74
  6. Step 6: Final answer
    x = 143,084.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.