Home / 130,955.78-180,720.24-74,367.56

Finding the Fourth Proportional to 130,955.78, 180,720.24 and 74,367.56

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Solution

The fourth proportional to 130,955.78, 180,720.24 and 74,367.56 is: 102,627.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,955.78 : 180,720.24 = 74,367.56 : x
  2. Step 2: Convert to fraction form
    130,955.78/180,720.24 = 74,367.56/x
  3. Step 3: Cross multiply
    130,955.78x = 180,720.24 × 74,367.56
  4. Step 4: Simplify right side
    130,955.78x = 13,439,723,291.41
  5. Step 5: Solve for x
    x = 13,439,723,291.41/130,955.78
  6. Step 6: Final answer
    x = 102,627.95

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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.