Home / 130,871.95-180,604.16-74,284.27

Finding the Fourth Proportional to 130,871.95, 180,604.16 and 74,284.27

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Solution

The fourth proportional to 130,871.95, 180,604.16 and 74,284.27 is: 102,512.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,871.95 : 180,604.16 = 74,284.27 : x
  2. Step 2: Convert to fraction form
    130,871.95/180,604.16 = 74,284.27/x
  3. Step 3: Cross multiply
    130,871.95x = 180,604.16 × 74,284.27
  4. Step 4: Simplify right side
    130,871.95x = 13,416,048,184.56
  5. Step 5: Solve for x
    x = 13,416,048,184.56/130,871.95
  6. Step 6: Final answer
    x = 102,512.79

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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.