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Finding the Fourth Proportional to 168,420.74, 232,421.22 and 91,941.53

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Solution

The fourth proportional to 168,420.74, 232,421.22 and 91,941.53 is: 126,879.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,420.74 : 232,421.22 = 91,941.53 : x
  2. Step 2: Convert to fraction form
    168,420.74/232,421.22 = 91,941.53/x
  3. Step 3: Cross multiply
    168,420.74x = 232,421.22 × 91,941.53
  4. Step 4: Simplify right side
    168,420.74x = 21,369,161,409.16
  5. Step 5: Solve for x
    x = 21,369,161,409.16/168,420.74
  6. Step 6: Final answer
    x = 126,879.64

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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.