Home / 135,174.71-186,533.62-74,741.76

Finding the Fourth Proportional to 135,174.71, 186,533.62 and 74,741.76

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Solution

The fourth proportional to 135,174.71, 186,533.62 and 74,741.76 is: 103,139.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,174.71 : 186,533.62 = 74,741.76 : x
  2. Step 2: Convert to fraction form
    135,174.71/186,533.62 = 74,741.76/x
  3. Step 3: Cross multiply
    135,174.71x = 186,533.62 × 74,741.76
  4. Step 4: Simplify right side
    135,174.71x = 13,941,850,871.12
  5. Step 5: Solve for x
    x = 13,941,850,871.12/135,174.71
  6. Step 6: Final answer
    x = 103,139.49

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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.