Home / 116,770.86-161,114.13-71,432.28

Finding the Fourth Proportional to 116,770.86, 161,114.13 and 71,432.28

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Solution

The fourth proportional to 116,770.86, 161,114.13 and 71,432.28 is: 98,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,770.86 : 161,114.13 = 71,432.28 : x
  2. Step 2: Convert to fraction form
    116,770.86/161,114.13 = 71,432.28/x
  3. Step 3: Cross multiply
    116,770.86x = 161,114.13 × 71,432.28
  4. Step 4: Simplify right side
    116,770.86x = 11,508,749,646.12
  5. Step 5: Solve for x
    x = 11,508,749,646.12/116,770.86
  6. Step 6: Final answer
    x = 98,558.40

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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.