Home / 134,955.56-202,370.70-78,812.30

Finding the Fourth Proportional to 134,955.56, 202,370.70 and 78,812.30

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Solution

The fourth proportional to 134,955.56, 202,370.70 and 78,812.30 is: 118,181.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,955.56 : 202,370.70 = 78,812.30 : x
  2. Step 2: Convert to fraction form
    134,955.56/202,370.70 = 78,812.30/x
  3. Step 3: Cross multiply
    134,955.56x = 202,370.70 × 78,812.30
  4. Step 4: Simplify right side
    134,955.56x = 15,949,300,319.61
  5. Step 5: Solve for x
    x = 15,949,300,319.61/134,955.56
  6. Step 6: Final answer
    x = 118,181.87

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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.