Home / 126,110.74-174,019.89-72,382.90

Finding the Fourth Proportional to 126,110.74, 174,019.89 and 72,382.90

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Solution

The fourth proportional to 126,110.74, 174,019.89 and 72,382.90 is: 99,880.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,110.74 : 174,019.89 = 72,382.90 : x
  2. Step 2: Convert to fraction form
    126,110.74/174,019.89 = 72,382.90/x
  3. Step 3: Cross multiply
    126,110.74x = 174,019.89 × 72,382.90
  4. Step 4: Simplify right side
    126,110.74x = 12,596,064,295.88
  5. Step 5: Solve for x
    x = 12,596,064,295.88/126,110.74
  6. Step 6: Final answer
    x = 99,880.98

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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.