Home / 117,904.60-162,707.36-64,189.50

Finding the Fourth Proportional to 117,904.60, 162,707.36 and 64,189.50

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Solution

The fourth proportional to 117,904.60, 162,707.36 and 64,189.50 is: 88,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,904.60 : 162,707.36 = 64,189.50 : x
  2. Step 2: Convert to fraction form
    117,904.60/162,707.36 = 64,189.50/x
  3. Step 3: Cross multiply
    117,904.60x = 162,707.36 × 64,189.50
  4. Step 4: Simplify right side
    117,904.60x = 10,444,104,084.72
  5. Step 5: Solve for x
    x = 10,444,104,084.72/117,904.60
  6. Step 6: Final answer
    x = 88,580.97

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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.