Home / 85,992.12-118,457.28-73,204.08

Finding the Fourth Proportional to 85,992.12, 118,457.28 and 73,204.08

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Solution

The fourth proportional to 85,992.12, 118,457.28 and 73,204.08 is: 100,841.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,992.12 : 118,457.28 = 73,204.08 : x
  2. Step 2: Convert to fraction form
    85,992.12/118,457.28 = 73,204.08/x
  3. Step 3: Cross multiply
    85,992.12x = 118,457.28 × 73,204.08
  4. Step 4: Simplify right side
    85,992.12x = 8,671,556,201.70
  5. Step 5: Solve for x
    x = 8,671,556,201.70/85,992.12
  6. Step 6: Final answer
    x = 100,841.29

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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.