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Finding the Fourth Proportional to 126,309.84, 174,300.84 and 72,586.32

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Solution

The fourth proportional to 126,309.84, 174,300.84 and 72,586.32 is: 100,165.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,309.84 : 174,300.84 = 72,586.32 : x
  2. Step 2: Convert to fraction form
    126,309.84/174,300.84 = 72,586.32/x
  3. Step 3: Cross multiply
    126,309.84x = 174,300.84 × 72,586.32
  4. Step 4: Simplify right side
    126,309.84x = 12,651,856,548.51
  5. Step 5: Solve for x
    x = 12,651,856,548.51/126,309.84
  6. Step 6: Final answer
    x = 100,165.25

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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.