Home / 103,724.60-155,595.08-51,105.40

Finding the Fourth Proportional to 103,724.60, 155,595.08 and 51,105.40

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Solution

The fourth proportional to 103,724.60, 155,595.08 and 51,105.40 is: 76,662.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,724.60 : 155,595.08 = 51,105.40 : x
  2. Step 2: Convert to fraction form
    103,724.60/155,595.08 = 51,105.40/x
  3. Step 3: Cross multiply
    103,724.60x = 155,595.08 × 51,105.40
  4. Step 4: Simplify right side
    103,724.60x = 7,951,748,801.43
  5. Step 5: Solve for x
    x = 7,951,748,801.43/103,724.60
  6. Step 6: Final answer
    x = 76,662.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.