Home / 130,860.24-180,584.28-76,421.76

Finding the Fourth Proportional to 130,860.24, 180,584.28 and 76,421.76

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Solution

The fourth proportional to 130,860.24, 180,584.28 and 76,421.76 is: 105,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,860.24 : 180,584.28 = 76,421.76 : x
  2. Step 2: Convert to fraction form
    130,860.24/180,584.28 = 76,421.76/x
  3. Step 3: Cross multiply
    130,860.24x = 180,584.28 × 76,421.76
  4. Step 4: Simplify right side
    130,860.24x = 13,800,568,505.93
  5. Step 5: Solve for x
    x = 13,800,568,505.93/130,860.24
  6. Step 6: Final answer
    x = 105,460.36

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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.