Home / 112,457.90-155,241.87-85,601.54

Finding the Fourth Proportional to 112,457.90, 155,241.87 and 85,601.54

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Solution

The fourth proportional to 112,457.90, 155,241.87 and 85,601.54 is: 118,168.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,457.90 : 155,241.87 = 85,601.54 : x
  2. Step 2: Convert to fraction form
    112,457.90/155,241.87 = 85,601.54/x
  3. Step 3: Cross multiply
    112,457.90x = 155,241.87 × 85,601.54
  4. Step 4: Simplify right side
    112,457.90x = 13,288,943,211.58
  5. Step 5: Solve for x
    x = 13,288,943,211.58/112,457.90
  6. Step 6: Final answer
    x = 118,168.16

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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.