Home / 126,721.80-190,105.65-60,161.40

Finding the Fourth Proportional to 126,721.80, 190,105.65 and 60,161.40

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Solution

The fourth proportional to 126,721.80, 190,105.65 and 60,161.40 is: 90,253.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,721.80 : 190,105.65 = 60,161.40 : x
  2. Step 2: Convert to fraction form
    126,721.80/190,105.65 = 60,161.40/x
  3. Step 3: Cross multiply
    126,721.80x = 190,105.65 × 60,161.40
  4. Step 4: Simplify right side
    126,721.80x = 11,437,022,051.91
  5. Step 5: Solve for x
    x = 11,437,022,051.91/126,721.80
  6. Step 6: Final answer
    x = 90,253.00

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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.