Home / 126,541,188.03-189,626,080.07-71,316,532.86

Finding the Fourth Proportional to 126,541,188.03, 189,626,080.07 and 71,316,532.86

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Solution

The fourth proportional to 126,541,188.03, 189,626,080.07 and 71,316,532.86 is: 106,870,140.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,541,188.03 : 189,626,080.07 = 71,316,532.86 : x
  2. Step 2: Convert to fraction form
    126,541,188.03/189,626,080.07 = 71,316,532.86/x
  3. Step 3: Cross multiply
    126,541,188.03x = 189,626,080.07 × 71,316,532.86
  4. Step 4: Simplify right side
    126,541,188.03x = 13,523,474,570,068,564
  5. Step 5: Solve for x
    x = 13,523,474,570,068,564/126,541,188.03
  6. Step 6: Final answer
    x = 106,870,140.71

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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.