Home / 126,905.25-190,360.95-42,666.51

Finding the Fourth Proportional to 126,905.25, 190,360.95 and 42,666.51

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Solution

The fourth proportional to 126,905.25, 190,360.95 and 42,666.51 is: 64,000.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,905.25 : 190,360.95 = 42,666.51 : x
  2. Step 2: Convert to fraction form
    126,905.25/190,360.95 = 42,666.51/x
  3. Step 3: Cross multiply
    126,905.25x = 190,360.95 × 42,666.51
  4. Step 4: Simplify right side
    126,905.25x = 8,122,037,376.78
  5. Step 5: Solve for x
    x = 8,122,037,376.78/126,905.25
  6. Step 6: Final answer
    x = 64,000.80

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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.