Home / 117,156.21-161,675.28-63,441.23

Finding the Fourth Proportional to 117,156.21, 161,675.28 and 63,441.23

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Solution

The fourth proportional to 117,156.21, 161,675.28 and 63,441.23 is: 87,548.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,156.21 : 161,675.28 = 63,441.23 : x
  2. Step 2: Convert to fraction form
    117,156.21/161,675.28 = 63,441.23/x
  3. Step 3: Cross multiply
    117,156.21x = 161,675.28 × 63,441.23
  4. Step 4: Simplify right side
    117,156.21x = 10,256,878,623.79
  5. Step 5: Solve for x
    x = 10,256,878,623.79/117,156.21
  6. Step 6: Final answer
    x = 87,548.74

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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.