Home / 85,847.04-118,403.94-75,218.28

Finding the Fourth Proportional to 85,847.04, 118,403.94 and 75,218.28

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Solution

The fourth proportional to 85,847.04, 118,403.94 and 75,218.28 is: 103,744.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,847.04 : 118,403.94 = 75,218.28 : x
  2. Step 2: Convert to fraction form
    85,847.04/118,403.94 = 75,218.28/x
  3. Step 3: Cross multiply
    85,847.04x = 118,403.94 × 75,218.28
  4. Step 4: Simplify right side
    85,847.04x = 8,906,140,712.02
  5. Step 5: Solve for x
    x = 8,906,140,712.02/85,847.04
  6. Step 6: Final answer
    x = 103,744.30

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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.