Home / 179,990.36-248,389.08-99,417.68

Finding the Fourth Proportional to 179,990.36, 248,389.08 and 99,417.68

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Solution

The fourth proportional to 179,990.36, 248,389.08 and 99,417.68 is: 137,197.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,990.36 : 248,389.08 = 99,417.68 : x
  2. Step 2: Convert to fraction form
    179,990.36/248,389.08 = 99,417.68/x
  3. Step 3: Cross multiply
    179,990.36x = 248,389.08 × 99,417.68
  4. Step 4: Simplify right side
    179,990.36x = 24,694,266,070.93
  5. Step 5: Solve for x
    x = 24,694,266,070.93/179,990.36
  6. Step 6: Final answer
    x = 137,197.71

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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.