Home / 135,096.30-186,442.55-74,665.64

Finding the Fourth Proportional to 135,096.30, 186,442.55 and 74,665.64

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Solution

The fourth proportional to 135,096.30, 186,442.55 and 74,665.64 is: 103,043.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,096.30 : 186,442.55 = 74,665.64 : x
  2. Step 2: Convert to fraction form
    135,096.30/186,442.55 = 74,665.64/x
  3. Step 3: Cross multiply
    135,096.30x = 186,442.55 × 74,665.64
  4. Step 4: Simplify right side
    135,096.30x = 13,920,852,411.76
  5. Step 5: Solve for x
    x = 13,920,852,411.76/135,096.30
  6. Step 6: Final answer
    x = 103,043.92

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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.