Home / 126,699.15-174,842.60-72,984

Finding the Fourth Proportional to 126,699.15, 174,842.60 and 72,984

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Solution

The fourth proportional to 126,699.15, 174,842.60 and 72,984 is: 100,716.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,699.15 : 174,842.60 = 72,984 : x
  2. Step 2: Convert to fraction form
    126,699.15/174,842.60 = 72,984/x
  3. Step 3: Cross multiply
    126,699.15x = 174,842.60 × 72,984
  4. Step 4: Simplify right side
    126,699.15x = 12,760,711,953.48
  5. Step 5: Solve for x
    x = 12,760,711,953.48/126,699.15
  6. Step 6: Final answer
    x = 100,716.63

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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.