Home / 112,947.76-155,874.36-68,250.16

Finding the Fourth Proportional to 112,947.76, 155,874.36 and 68,250.16

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Solution

The fourth proportional to 112,947.76, 155,874.36 and 68,250.16 is: 94,189.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,947.76 : 155,874.36 = 68,250.16 : x
  2. Step 2: Convert to fraction form
    112,947.76/155,874.36 = 68,250.16/x
  3. Step 3: Cross multiply
    112,947.76x = 155,874.36 × 68,250.16
  4. Step 4: Simplify right side
    112,947.76x = 10,638,450,009.90
  5. Step 5: Solve for x
    x = 10,638,450,009.90/112,947.76
  6. Step 6: Final answer
    x = 94,189.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.