Home / 116,464.08-160,720.56-66,172.80

Finding the Fourth Proportional to 116,464.08, 160,720.56 and 66,172.80

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Solution

The fourth proportional to 116,464.08, 160,720.56 and 66,172.80 is: 91,318.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,464.08 : 160,720.56 = 66,172.80 : x
  2. Step 2: Convert to fraction form
    116,464.08/160,720.56 = 66,172.80/x
  3. Step 3: Cross multiply
    116,464.08x = 160,720.56 × 66,172.80
  4. Step 4: Simplify right side
    116,464.08x = 10,635,329,472.77
  5. Step 5: Solve for x
    x = 10,635,329,472.77/116,464.08
  6. Step 6: Final answer
    x = 91,318.54

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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.