Home / 117,290.12-161,860.64-63,575.07

Finding the Fourth Proportional to 117,290.12, 161,860.64 and 63,575.07

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Solution

The fourth proportional to 117,290.12, 161,860.64 and 63,575.07 is: 87,733.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,290.12 : 161,860.64 = 63,575.07 : x
  2. Step 2: Convert to fraction form
    117,290.12/161,860.64 = 63,575.07/x
  3. Step 3: Cross multiply
    117,290.12x = 161,860.64 × 63,575.07
  4. Step 4: Simplify right side
    117,290.12x = 10,290,301,200.37
  5. Step 5: Solve for x
    x = 10,290,301,200.37/117,290.12
  6. Step 6: Final answer
    x = 87,733.75

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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.