Home / 126,320.46-189,316.16-51,353.04

Finding the Fourth Proportional to 126,320.46, 189,316.16 and 51,353.04

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Solution

The fourth proportional to 126,320.46, 189,316.16 and 51,353.04 is: 76,962.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,320.46 : 189,316.16 = 51,353.04 : x
  2. Step 2: Convert to fraction form
    126,320.46/189,316.16 = 51,353.04/x
  3. Step 3: Cross multiply
    126,320.46x = 189,316.16 × 51,353.04
  4. Step 4: Simplify right side
    126,320.46x = 9,721,960,080.36
  5. Step 5: Solve for x
    x = 9,721,960,080.36/126,320.46
  6. Step 6: Final answer
    x = 76,962.67

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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.