Home / 172,931.49-257,678.11-154,066.56

Finding the Fourth Proportional to 172,931.49, 257,678.11 and 154,066.56

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Solution

The fourth proportional to 172,931.49, 257,678.11 and 154,066.56 is: 229,568.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,931.49 : 257,678.11 = 154,066.56 : x
  2. Step 2: Convert to fraction form
    172,931.49/257,678.11 = 154,066.56/x
  3. Step 3: Cross multiply
    172,931.49x = 257,678.11 × 154,066.56
  4. Step 4: Simplify right side
    172,931.49x = 39,699,579,221.29
  5. Step 5: Solve for x
    x = 39,699,579,221.29/172,931.49
  6. Step 6: Final answer
    x = 229,568.25

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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.