Home / 126,669.39-174,807-76,371.63

Finding the Fourth Proportional to 126,669.39, 174,807 and 76,371.63

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Solution

The fourth proportional to 126,669.39, 174,807 and 76,371.63 is: 105,394.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,669.39 : 174,807 = 76,371.63 : x
  2. Step 2: Convert to fraction form
    126,669.39/174,807 = 76,371.63/x
  3. Step 3: Cross multiply
    126,669.39x = 174,807 × 76,371.63
  4. Step 4: Simplify right side
    126,669.39x = 13,350,295,525.41
  5. Step 5: Solve for x
    x = 13,350,295,525.41/126,669.39
  6. Step 6: Final answer
    x = 105,394.80

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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.