Home / 126,210.20-189,056.10-63,915.80

Finding the Fourth Proportional to 126,210.20, 189,056.10 and 63,915.80

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Solution

The fourth proportional to 126,210.20, 189,056.10 and 63,915.80 is: 95,742.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,210.20 : 189,056.10 = 63,915.80 : x
  2. Step 2: Convert to fraction form
    126,210.20/189,056.10 = 63,915.80/x
  3. Step 3: Cross multiply
    126,210.20x = 189,056.10 × 63,915.80
  4. Step 4: Simplify right side
    126,210.20x = 12,083,671,876.38
  5. Step 5: Solve for x
    x = 12,083,671,876.38/126,210.20
  6. Step 6: Final answer
    x = 95,742.44

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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.