Home / 113,113.88-156,099.03-62,131.32

Finding the Fourth Proportional to 113,113.88, 156,099.03 and 62,131.32

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Solution

The fourth proportional to 113,113.88, 156,099.03 and 62,131.32 is: 85,742.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,113.88 : 156,099.03 = 62,131.32 : x
  2. Step 2: Convert to fraction form
    113,113.88/156,099.03 = 62,131.32/x
  3. Step 3: Cross multiply
    113,113.88x = 156,099.03 × 62,131.32
  4. Step 4: Simplify right side
    113,113.88x = 9,698,638,784.62
  5. Step 5: Solve for x
    x = 9,698,638,784.62/113,113.88
  6. Step 6: Final answer
    x = 85,742.25

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1.5x scale

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.