Home / 136,023.92-187,730.53-76,419.44

Finding the Fourth Proportional to 136,023.92, 187,730.53 and 76,419.44

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Solution

The fourth proportional to 136,023.92, 187,730.53 and 76,419.44 is: 105,468.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,023.92 : 187,730.53 = 76,419.44 : x
  2. Step 2: Convert to fraction form
    136,023.92/187,730.53 = 76,419.44/x
  3. Step 3: Cross multiply
    136,023.92x = 187,730.53 × 76,419.44
  4. Step 4: Simplify right side
    136,023.92x = 14,346,261,973.50
  5. Step 5: Solve for x
    x = 14,346,261,973.50/136,023.92
  6. Step 6: Final answer
    x = 105,468.67

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1.5x scale

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.