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Finding the Fourth Proportional to 136,397.01, 188,233.74 and 75,967.68

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Solution

The fourth proportional to 136,397.01, 188,233.74 and 75,967.68 is: 104,838.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,397.01 : 188,233.74 = 75,967.68 : x
  2. Step 2: Convert to fraction form
    136,397.01/188,233.74 = 75,967.68/x
  3. Step 3: Cross multiply
    136,397.01x = 188,233.74 × 75,967.68
  4. Step 4: Simplify right side
    136,397.01x = 14,299,680,525.52
  5. Step 5: Solve for x
    x = 14,299,680,525.52/136,397.01
  6. Step 6: Final answer
    x = 104,838.67

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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.