Home / 134,778.90-202,314.15-84,915.30

Finding the Fourth Proportional to 134,778.90, 202,314.15 and 84,915.30

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Solution

The fourth proportional to 134,778.90, 202,314.15 and 84,915.30 is: 127,464.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,778.90 : 202,314.15 = 84,915.30 : x
  2. Step 2: Convert to fraction form
    134,778.90/202,314.15 = 84,915.30/x
  3. Step 3: Cross multiply
    134,778.90x = 202,314.15 × 84,915.30
  4. Step 4: Simplify right side
    134,778.90x = 17,179,566,741.50
  5. Step 5: Solve for x
    x = 17,179,566,741.50/134,778.90
  6. Step 6: Final answer
    x = 127,464.81

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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.