Home / 130,858.20-180,585.18-74,270.52

Finding the Fourth Proportional to 130,858.20, 180,585.18 and 74,270.52

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Solution

The fourth proportional to 130,858.20, 180,585.18 and 74,270.52 is: 102,493.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,858.20 : 180,585.18 = 74,270.52 : x
  2. Step 2: Convert to fraction form
    130,858.20/180,585.18 = 74,270.52/x
  3. Step 3: Cross multiply
    130,858.20x = 180,585.18 × 74,270.52
  4. Step 4: Simplify right side
    130,858.20x = 13,412,155,222.89
  5. Step 5: Solve for x
    x = 13,412,155,222.89/130,858.20
  6. Step 6: Final answer
    x = 102,493.81

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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.