Home / 113,149.58-156,145.77-62,161.21

Finding the Fourth Proportional to 113,149.58, 156,145.77 and 62,161.21

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Solution

The fourth proportional to 113,149.58, 156,145.77 and 62,161.21 is: 85,782.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,149.58 : 156,145.77 = 62,161.21 : x
  2. Step 2: Convert to fraction form
    113,149.58/156,145.77 = 62,161.21/x
  3. Step 3: Cross multiply
    113,149.58x = 156,145.77 × 62,161.21
  4. Step 4: Simplify right side
    113,149.58x = 9,706,209,609.22
  5. Step 5: Solve for x
    x = 9,706,209,609.22/113,149.58
  6. Step 6: Final answer
    x = 85,782.11

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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.