Home / 113,068.05-169,402.48-68,604.51

Finding the Fourth Proportional to 113,068.05, 169,402.48 and 68,604.51

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Solution

The fourth proportional to 113,068.05, 169,402.48 and 68,604.51 is: 102,785.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,068.05 : 169,402.48 = 68,604.51 : x
  2. Step 2: Convert to fraction form
    113,068.05/169,402.48 = 68,604.51/x
  3. Step 3: Cross multiply
    113,068.05x = 169,402.48 × 68,604.51
  4. Step 4: Simplify right side
    113,068.05x = 11,621,774,133.18
  5. Step 5: Solve for x
    x = 11,621,774,133.18/113,068.05
  6. Step 6: Final answer
    x = 102,785.66

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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.