Home / 116,457.12-160,728.36-71,161.38

Finding the Fourth Proportional to 116,457.12, 160,728.36 and 71,161.38

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Solution

The fourth proportional to 116,457.12, 160,728.36 and 71,161.38 is: 98,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,457.12 : 160,728.36 = 71,161.38 : x
  2. Step 2: Convert to fraction form
    116,457.12/160,728.36 = 71,161.38/x
  3. Step 3: Cross multiply
    116,457.12x = 160,728.36 × 71,161.38
  4. Step 4: Simplify right side
    116,457.12x = 11,437,651,902.74
  5. Step 5: Solve for x
    x = 11,437,651,902.74/116,457.12
  6. Step 6: Final answer
    x = 98,213.42

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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.