Home / 127,914.10-191,869.35-57,793.30

Finding the Fourth Proportional to 127,914.10, 191,869.35 and 57,793.30

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Solution

The fourth proportional to 127,914.10, 191,869.35 and 57,793.30 is: 86,689.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,914.10 : 191,869.35 = 57,793.30 : x
  2. Step 2: Convert to fraction form
    127,914.10/191,869.35 = 57,793.30/x
  3. Step 3: Cross multiply
    127,914.10x = 191,869.35 × 57,793.30
  4. Step 4: Simplify right side
    127,914.10x = 11,088,762,905.36
  5. Step 5: Solve for x
    x = 11,088,762,905.36/127,914.10
  6. Step 6: Final answer
    x = 86,689.14

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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.