Home / 116,478.08-160,739.88-66,186.80

Finding the Fourth Proportional to 116,478.08, 160,739.88 and 66,186.80

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Solution

The fourth proportional to 116,478.08, 160,739.88 and 66,186.80 is: 91,337.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,478.08 : 160,739.88 = 66,186.80 : x
  2. Step 2: Convert to fraction form
    116,478.08/160,739.88 = 66,186.80/x
  3. Step 3: Cross multiply
    116,478.08x = 160,739.88 × 66,186.80
  4. Step 4: Simplify right side
    116,478.08x = 10,638,858,289.58
  5. Step 5: Solve for x
    x = 10,638,858,289.58/116,478.08
  6. Step 6: Final answer
    x = 91,337.86

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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.