Home / 127,862.67-191,787.09-39,116.17

Finding the Fourth Proportional to 127,862.67, 191,787.09 and 39,116.17

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Solution

The fourth proportional to 127,862.67, 191,787.09 and 39,116.17 is: 58,672.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,862.67 : 191,787.09 = 39,116.17 : x
  2. Step 2: Convert to fraction form
    127,862.67/191,787.09 = 39,116.17/x
  3. Step 3: Cross multiply
    127,862.67x = 191,787.09 × 39,116.17
  4. Step 4: Simplify right side
    127,862.67x = 7,501,976,416.25
  5. Step 5: Solve for x
    x = 7,501,976,416.25/127,862.67
  6. Step 6: Final answer
    x = 58,672.14

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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.