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Finding the Fourth Proportional to 180,146.88, 248,589.54 and 99,569.88

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Solution

The fourth proportional to 180,146.88, 248,589.54 and 99,569.88 is: 137,399.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,146.88 : 248,589.54 = 99,569.88 : x
  2. Step 2: Convert to fraction form
    180,146.88/248,589.54 = 99,569.88/x
  3. Step 3: Cross multiply
    180,146.88x = 248,589.54 × 99,569.88
  4. Step 4: Simplify right side
    180,146.88x = 24,752,030,667.06
  5. Step 5: Solve for x
    x = 24,752,030,667.06/180,146.88
  6. Step 6: Final answer
    x = 137,399.16

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1.5x scale

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.