Home / 135,330.50-186,752.43-74,903.69

Finding the Fourth Proportional to 135,330.50, 186,752.43 and 74,903.69

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Solution

The fourth proportional to 135,330.50, 186,752.43 and 74,903.69 is: 103,365.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,330.50 : 186,752.43 = 74,903.69 : x
  2. Step 2: Convert to fraction form
    135,330.50/186,752.43 = 74,903.69/x
  3. Step 3: Cross multiply
    135,330.50x = 186,752.43 × 74,903.69
  4. Step 4: Simplify right side
    135,330.50x = 13,988,445,189.70
  5. Step 5: Solve for x
    x = 13,988,445,189.70/135,330.50
  6. Step 6: Final answer
    x = 103,365.06

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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.