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Finding the Fourth Proportional to 100,613.80, 150,920.70 and 93,010.60

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Solution

The fourth proportional to 100,613.80, 150,920.70 and 93,010.60 is: 139,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,613.80 : 150,920.70 = 93,010.60 : x
  2. Step 2: Convert to fraction form
    100,613.80/150,920.70 = 93,010.60/x
  3. Step 3: Cross multiply
    100,613.80x = 150,920.70 × 93,010.60
  4. Step 4: Simplify right side
    100,613.80x = 14,037,224,859.42
  5. Step 5: Solve for x
    x = 14,037,224,859.42/100,613.80
  6. Step 6: Final answer
    x = 139,515.90

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1.5x scale

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.