Home / 103,613.85-155,502.79-40,464.23

Finding the Fourth Proportional to 103,613.85, 155,502.79 and 40,464.23

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Solution

The fourth proportional to 103,613.85, 155,502.79 and 40,464.23 is: 60,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,613.85 : 155,502.79 = 40,464.23 : x
  2. Step 2: Convert to fraction form
    103,613.85/155,502.79 = 40,464.23/x
  3. Step 3: Cross multiply
    103,613.85x = 155,502.79 × 40,464.23
  4. Step 4: Simplify right side
    103,613.85x = 6,292,299,781.53
  5. Step 5: Solve for x
    x = 6,292,299,781.53/103,613.85
  6. Step 6: Final answer
    x = 60,728.37

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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.