Home / 129,903.48-179,293.50-76,216.68

Finding the Fourth Proportional to 129,903.48, 179,293.50 and 76,216.68

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Solution

The fourth proportional to 129,903.48, 179,293.50 and 76,216.68 is: 105,194.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,903.48 : 179,293.50 = 76,216.68 : x
  2. Step 2: Convert to fraction form
    129,903.48/179,293.50 = 76,216.68/x
  3. Step 3: Cross multiply
    129,903.48x = 179,293.50 × 76,216.68
  4. Step 4: Simplify right side
    129,903.48x = 13,665,155,315.58
  5. Step 5: Solve for x
    x = 13,665,155,315.58/129,903.48
  6. Step 6: Final answer
    x = 105,194.68

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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.