Home / 70,756.18-106,138.08-18,166.12

Finding the Fourth Proportional to 70,756.18, 106,138.08 and 18,166.12

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Solution

The fourth proportional to 70,756.18, 106,138.08 and 18,166.12 is: 27,250.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,756.18 : 106,138.08 = 18,166.12 : x
  2. Step 2: Convert to fraction form
    70,756.18/106,138.08 = 18,166.12/x
  3. Step 3: Cross multiply
    70,756.18x = 106,138.08 × 18,166.12
  4. Step 4: Simplify right side
    70,756.18x = 1,928,117,097.85
  5. Step 5: Solve for x
    x = 1,928,117,097.85/70,756.18
  6. Step 6: Final answer
    x = 27,250.16

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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.