Home / 117,609.76-162,289.75-66,612.31

Finding the Fourth Proportional to 117,609.76, 162,289.75 and 66,612.31

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Solution

The fourth proportional to 117,609.76, 162,289.75 and 66,612.31 is: 91,918.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,609.76 : 162,289.75 = 66,612.31 : x
  2. Step 2: Convert to fraction form
    117,609.76/162,289.75 = 66,612.31/x
  3. Step 3: Cross multiply
    117,609.76x = 162,289.75 × 66,612.31
  4. Step 4: Simplify right side
    117,609.76x = 10,810,494,876.81
  5. Step 5: Solve for x
    x = 10,810,494,876.81/117,609.76
  6. Step 6: Final answer
    x = 91,918.35

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1.5x scale

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.