Home / 180,429.72-248,991.18-99,857.40

Finding the Fourth Proportional to 180,429.72, 248,991.18 and 99,857.40

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Solution

The fourth proportional to 180,429.72, 248,991.18 and 99,857.40 is: 137,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,429.72 : 248,991.18 = 99,857.40 : x
  2. Step 2: Convert to fraction form
    180,429.72/248,991.18 = 99,857.40/x
  3. Step 3: Cross multiply
    180,429.72x = 248,991.18 × 99,857.40
  4. Step 4: Simplify right side
    180,429.72x = 24,863,611,857.73
  5. Step 5: Solve for x
    x = 24,863,611,857.73/180,429.72
  6. Step 6: Final answer
    x = 137,802.20

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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.