Home / 172,431.94-237,988.83-107,931.10

Finding the Fourth Proportional to 172,431.94, 237,988.83 and 107,931.10

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Solution

The fourth proportional to 172,431.94, 237,988.83 and 107,931.10 is: 148,965.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,431.94 : 237,988.83 = 107,931.10 : x
  2. Step 2: Convert to fraction form
    172,431.94/237,988.83 = 107,931.10/x
  3. Step 3: Cross multiply
    172,431.94x = 237,988.83 × 107,931.10
  4. Step 4: Simplify right side
    172,431.94x = 25,686,396,209.61
  5. Step 5: Solve for x
    x = 25,686,396,209.61/172,431.94
  6. Step 6: Final answer
    x = 148,965.42

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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.