Home / 118,447.72-163,457.87-67,465.20

Finding the Fourth Proportional to 118,447.72, 163,457.87 and 67,465.20

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Solution

The fourth proportional to 118,447.72, 163,457.87 and 67,465.20 is: 93,101.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,447.72 : 163,457.87 = 67,465.20 : x
  2. Step 2: Convert to fraction form
    118,447.72/163,457.87 = 67,465.20/x
  3. Step 3: Cross multiply
    118,447.72x = 163,457.87 × 67,465.20
  4. Step 4: Simplify right side
    118,447.72x = 11,027,717,891.12
  5. Step 5: Solve for x
    x = 11,027,717,891.12/118,447.72
  6. Step 6: Final answer
    x = 93,101.99

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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.