Home / 126,748.80-190,123.20-84,969.60

Finding the Fourth Proportional to 126,748.80, 190,123.20 and 84,969.60

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Solution

The fourth proportional to 126,748.80, 190,123.20 and 84,969.60 is: 127,454.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,748.80 : 190,123.20 = 84,969.60 : x
  2. Step 2: Convert to fraction form
    126,748.80/190,123.20 = 84,969.60/x
  3. Step 3: Cross multiply
    126,748.80x = 190,123.20 × 84,969.60
  4. Step 4: Simplify right side
    126,748.80x = 16,154,692,254.72
  5. Step 5: Solve for x
    x = 16,154,692,254.72/126,748.80
  6. Step 6: Final answer
    x = 127,454.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.