Home / 172,937.13-257,686.48-154,072.21

Finding the Fourth Proportional to 172,937.13, 257,686.48 and 154,072.21

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Solution

The fourth proportional to 172,937.13, 257,686.48 and 154,072.21 is: 229,576.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,937.13 : 257,686.48 = 154,072.21 : x
  2. Step 2: Convert to fraction form
    172,937.13/257,686.48 = 154,072.21/x
  3. Step 3: Cross multiply
    172,937.13x = 257,686.48 × 154,072.21
  4. Step 4: Simplify right side
    172,937.13x = 39,702,324,431.32
  5. Step 5: Solve for x
    x = 39,702,324,431.32/172,937.13
  6. Step 6: Final answer
    x = 229,576.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.