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Finding the Fourth Proportional to 117,160.35, 161,681.43 and 63,445.46

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Solution

The fourth proportional to 117,160.35, 161,681.43 and 63,445.46 is: 87,554.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,160.35 : 161,681.43 = 63,445.46 : x
  2. Step 2: Convert to fraction form
    117,160.35/161,681.43 = 63,445.46/x
  3. Step 3: Cross multiply
    117,160.35x = 161,681.43 × 63,445.46
  4. Step 4: Simplify right side
    117,160.35x = 10,257,952,129.32
  5. Step 5: Solve for x
    x = 10,257,952,129.32/117,160.35
  6. Step 6: Final answer
    x = 87,554.81

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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.