Home / 70,902.28-106,353.78-18,308.14

Finding the Fourth Proportional to 70,902.28, 106,353.78 and 18,308.14

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Solution

The fourth proportional to 70,902.28, 106,353.78 and 18,308.14 is: 27,462.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,902.28 : 106,353.78 = 18,308.14 : x
  2. Step 2: Convert to fraction form
    70,902.28/106,353.78 = 18,308.14/x
  3. Step 3: Cross multiply
    70,902.28x = 106,353.78 × 18,308.14
  4. Step 4: Simplify right side
    70,902.28x = 1,947,139,893.77
  5. Step 5: Solve for x
    x = 1,947,139,893.77/70,902.28
  6. Step 6: Final answer
    x = 27,462.30

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1.5x scale

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.