Home / 126,423.40-189,633.90-51,525.96

Finding the Fourth Proportional to 126,423.40, 189,633.90 and 51,525.96

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Solution

The fourth proportional to 126,423.40, 189,633.90 and 51,525.96 is: 77,288.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,423.40 : 189,633.90 = 51,525.96 : x
  2. Step 2: Convert to fraction form
    126,423.40/189,633.90 = 51,525.96/x
  3. Step 3: Cross multiply
    126,423.40x = 189,633.90 × 51,525.96
  4. Step 4: Simplify right side
    126,423.40x = 9,771,068,746.04
  5. Step 5: Solve for x
    x = 9,771,068,746.04/126,423.40
  6. Step 6: Final answer
    x = 77,288.45

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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.