Home / 117,705.88-162,501.06-77,536.36

Finding the Fourth Proportional to 117,705.88, 162,501.06 and 77,536.36

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Solution

The fourth proportional to 117,705.88, 162,501.06 and 77,536.36 is: 107,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,705.88 : 162,501.06 = 77,536.36 : x
  2. Step 2: Convert to fraction form
    117,705.88/162,501.06 = 77,536.36/x
  3. Step 3: Cross multiply
    117,705.88x = 162,501.06 × 77,536.36
  4. Step 4: Simplify right side
    117,705.88x = 12,599,740,688.54
  5. Step 5: Solve for x
    x = 12,599,740,688.54/117,705.88
  6. Step 6: Final answer
    x = 107,044.28

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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.