Home / 130,642.56-180,286.68-74,057.52

Finding the Fourth Proportional to 130,642.56, 180,286.68 and 74,057.52

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Solution

The fourth proportional to 130,642.56, 180,286.68 and 74,057.52 is: 102,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,642.56 : 180,286.68 = 74,057.52 : x
  2. Step 2: Convert to fraction form
    130,642.56/180,286.68 = 74,057.52/x
  3. Step 3: Cross multiply
    130,642.56x = 180,286.68 × 74,057.52
  4. Step 4: Simplify right side
    130,642.56x = 13,351,584,409.83
  5. Step 5: Solve for x
    x = 13,351,584,409.83/130,642.56
  6. Step 6: Final answer
    x = 102,199.35

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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.