Home / 126,742.55-174,701.88-85,894.25

Finding the Fourth Proportional to 126,742.55, 174,701.88 and 85,894.25

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Solution

The fourth proportional to 126,742.55, 174,701.88 and 85,894.25 is: 118,396.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,742.55 : 174,701.88 = 85,894.25 : x
  2. Step 2: Convert to fraction form
    126,742.55/174,701.88 = 85,894.25/x
  3. Step 3: Cross multiply
    126,742.55x = 174,701.88 × 85,894.25
  4. Step 4: Simplify right side
    126,742.55x = 15,005,886,082.68
  5. Step 5: Solve for x
    x = 15,005,886,082.68/126,742.55
  6. Step 6: Final answer
    x = 118,396.60

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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.