Home / 316,029.11-474,088.64-102,728.45

Finding the Fourth Proportional to 316,029.11, 474,088.64 and 102,728.45

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Solution

The fourth proportional to 316,029.11, 474,088.64 and 102,728.45 is: 154,107.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,029.11 : 474,088.64 = 102,728.45 : x
  2. Step 2: Convert to fraction form
    316,029.11/474,088.64 = 102,728.45/x
  3. Step 3: Cross multiply
    316,029.11x = 474,088.64 × 102,728.45
  4. Step 4: Simplify right side
    316,029.11x = 48,702,391,149.81
  5. Step 5: Solve for x
    x = 48,702,391,149.81/316,029.11
  6. Step 6: Final answer
    x = 154,107.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.