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Finding the Fourth Proportional to 180,264.18, 248,760 and 99,689.56

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Solution

The fourth proportional to 180,264.18, 248,760 and 99,689.56 is: 137,569.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,264.18 : 248,760 = 99,689.56 : x
  2. Step 2: Convert to fraction form
    180,264.18/248,760 = 99,689.56/x
  3. Step 3: Cross multiply
    180,264.18x = 248,760 × 99,689.56
  4. Step 4: Simplify right side
    180,264.18x = 24,798,774,945.60
  5. Step 5: Solve for x
    x = 24,798,774,945.60/180,264.18
  6. Step 6: Final answer
    x = 137,569.07

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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.