Home / 126,529.43-174,605.29-72,816.30

Finding the Fourth Proportional to 126,529.43, 174,605.29 and 72,816.30

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Solution

The fourth proportional to 126,529.43, 174,605.29 and 72,816.30 is: 100,483.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,529.43 : 174,605.29 = 72,816.30 : x
  2. Step 2: Convert to fraction form
    126,529.43/174,605.29 = 72,816.30/x
  3. Step 3: Cross multiply
    126,529.43x = 174,605.29 × 72,816.30
  4. Step 4: Simplify right side
    126,529.43x = 12,714,110,996.19
  5. Step 5: Solve for x
    x = 12,714,110,996.19/126,529.43
  6. Step 6: Final answer
    x = 100,483.43

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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.