Home / 131,536.75-181,520.50-71,107.45

Finding the Fourth Proportional to 131,536.75, 181,520.50 and 71,107.45

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Solution

The fourth proportional to 131,536.75, 181,520.50 and 71,107.45 is: 98,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,536.75 : 181,520.50 = 71,107.45 : x
  2. Step 2: Convert to fraction form
    131,536.75/181,520.50 = 71,107.45/x
  3. Step 3: Cross multiply
    131,536.75x = 181,520.50 × 71,107.45
  4. Step 4: Simplify right side
    131,536.75x = 12,907,459,877.73
  5. Step 5: Solve for x
    x = 12,907,459,877.73/131,536.75
  6. Step 6: Final answer
    x = 98,128.16

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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.