Home / 127,705.89-191,587.01-38,966.25

Finding the Fourth Proportional to 127,705.89, 191,587.01 and 38,966.25

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Solution

The fourth proportional to 127,705.89, 191,587.01 and 38,966.25 is: 58,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,705.89 : 191,587.01 = 38,966.25 : x
  2. Step 2: Convert to fraction form
    127,705.89/191,587.01 = 38,966.25/x
  3. Step 3: Cross multiply
    127,705.89x = 191,587.01 × 38,966.25
  4. Step 4: Simplify right side
    127,705.89x = 7,465,427,133.58
  5. Step 5: Solve for x
    x = 7,465,427,133.58/127,705.89
  6. Step 6: Final answer
    x = 58,457.97

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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.