Home / 117,285.11-161,852.81-63,569.55

Finding the Fourth Proportional to 117,285.11, 161,852.81 and 63,569.55

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Solution

The fourth proportional to 117,285.11, 161,852.81 and 63,569.55 is: 87,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,285.11 : 161,852.81 = 63,569.55 : x
  2. Step 2: Convert to fraction form
    117,285.11/161,852.81 = 63,569.55/x
  3. Step 3: Cross multiply
    117,285.11x = 161,852.81 × 63,569.55
  4. Step 4: Simplify right side
    117,285.11x = 10,288,909,980.09
  5. Step 5: Solve for x
    x = 10,288,909,980.09/117,285.11
  6. Step 6: Final answer
    x = 87,725.63

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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.