Home / 126,762.40-174,877.20-76,433.44

Finding the Fourth Proportional to 126,762.40, 174,877.20 and 76,433.44

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Solution

The fourth proportional to 126,762.40, 174,877.20 and 76,433.44 is: 105,445.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,762.40 : 174,877.20 = 76,433.44 : x
  2. Step 2: Convert to fraction form
    126,762.40/174,877.20 = 76,433.44/x
  3. Step 3: Cross multiply
    126,762.40x = 174,877.20 × 76,433.44
  4. Step 4: Simplify right side
    126,762.40x = 13,366,465,973.57
  5. Step 5: Solve for x
    x = 13,366,465,973.57/126,762.40
  6. Step 6: Final answer
    x = 105,445.04

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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.