Home / 117,122.55-161,629.05-63,407.52

Finding the Fourth Proportional to 117,122.55, 161,629.05 and 63,407.52

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Solution

The fourth proportional to 117,122.55, 161,629.05 and 63,407.52 is: 87,502.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,122.55 : 161,629.05 = 63,407.52 : x
  2. Step 2: Convert to fraction form
    117,122.55/161,629.05 = 63,407.52/x
  3. Step 3: Cross multiply
    117,122.55x = 161,629.05 × 63,407.52
  4. Step 4: Simplify right side
    117,122.55x = 10,248,497,220.46
  5. Step 5: Solve for x
    x = 10,248,497,220.46/117,122.55
  6. Step 6: Final answer
    x = 87,502.34

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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.