Home / 117,153.72-161,671.40-63,437.60

Finding the Fourth Proportional to 117,153.72, 161,671.40 and 63,437.60

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Solution

The fourth proportional to 117,153.72, 161,671.40 and 63,437.60 is: 87,543.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,153.72 : 161,671.40 = 63,437.60 : x
  2. Step 2: Convert to fraction form
    117,153.72/161,671.40 = 63,437.60/x
  3. Step 3: Cross multiply
    117,153.72x = 161,671.40 × 63,437.60
  4. Step 4: Simplify right side
    117,153.72x = 10,256,045,604.64
  5. Step 5: Solve for x
    x = 10,256,045,604.64/117,153.72
  6. Step 6: Final answer
    x = 87,543.49

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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.