Home / 117,115.02-161,617.59-63,398.66

Finding the Fourth Proportional to 117,115.02, 161,617.59 and 63,398.66

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Solution

The fourth proportional to 117,115.02, 161,617.59 and 63,398.66 is: 87,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,115.02 : 161,617.59 = 63,398.66 : x
  2. Step 2: Convert to fraction form
    117,115.02/161,617.59 = 63,398.66/x
  3. Step 3: Cross multiply
    117,115.02x = 161,617.59 × 63,398.66
  4. Step 4: Simplify right side
    117,115.02x = 10,246,337,830.34
  5. Step 5: Solve for x
    x = 10,246,337,830.34/117,115.02
  6. Step 6: Final answer
    x = 87,489.53

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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.