Home / 516,148.16-774,214.03-126,658.75

Finding the Fourth Proportional to 516,148.16, 774,214.03 and 126,658.75

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Solution

The fourth proportional to 516,148.16, 774,214.03 and 126,658.75 is: 189,986.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,148.16 : 774,214.03 = 126,658.75 : x
  2. Step 2: Convert to fraction form
    516,148.16/774,214.03 = 126,658.75/x
  3. Step 3: Cross multiply
    516,148.16x = 774,214.03 × 126,658.75
  4. Step 4: Simplify right side
    516,148.16x = 98,060,979,719.37
  5. Step 5: Solve for x
    x = 98,060,979,719.37/516,148.16
  6. Step 6: Final answer
    x = 189,986.11

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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.