Home / 166,428-229,670.64-90,977.04

Finding the Fourth Proportional to 166,428, 229,670.64 and 90,977.04

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Solution

The fourth proportional to 166,428, 229,670.64 and 90,977.04 is: 125,548.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,428 : 229,670.64 = 90,977.04 : x
  2. Step 2: Convert to fraction form
    166,428/229,670.64 = 90,977.04/x
  3. Step 3: Cross multiply
    166,428x = 229,670.64 × 90,977.04
  4. Step 4: Simplify right side
    166,428x = 20,894,755,002.11
  5. Step 5: Solve for x
    x = 20,894,755,002.11/166,428
  6. Step 6: Final answer
    x = 125,548.32

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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.