Home / 154,266.64-231,341.56-84,107.76

Finding the Fourth Proportional to 154,266.64, 231,341.56 and 84,107.76

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Solution

The fourth proportional to 154,266.64, 231,341.56 and 84,107.76 is: 126,129.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,266.64 : 231,341.56 = 84,107.76 : x
  2. Step 2: Convert to fraction form
    154,266.64/231,341.56 = 84,107.76/x
  3. Step 3: Cross multiply
    154,266.64x = 231,341.56 × 84,107.76
  4. Step 4: Simplify right side
    154,266.64x = 19,457,620,406.51
  5. Step 5: Solve for x
    x = 19,457,620,406.51/154,266.64
  6. Step 6: Final answer
    x = 126,129.80

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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.