Home / 105,613.42-145,792.17-63,163.75

Finding the Fourth Proportional to 105,613.42, 145,792.17 and 63,163.75

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Solution

The fourth proportional to 105,613.42, 145,792.17 and 63,163.75 is: 87,193.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,613.42 : 145,792.17 = 63,163.75 : x
  2. Step 2: Convert to fraction form
    105,613.42/145,792.17 = 63,163.75/x
  3. Step 3: Cross multiply
    105,613.42x = 145,792.17 × 63,163.75
  4. Step 4: Simplify right side
    105,613.42x = 9,208,780,177.84
  5. Step 5: Solve for x
    x = 9,208,780,177.84/105,613.42
  6. Step 6: Final answer
    x = 87,193.28

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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.