Home / 305,122.01-457,576.81-125,155.61

Finding the Fourth Proportional to 305,122.01, 457,576.81 and 125,155.61

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Solution

The fourth proportional to 305,122.01, 457,576.81 and 125,155.61 is: 187,689.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,122.01 : 457,576.81 = 125,155.61 : x
  2. Step 2: Convert to fraction form
    305,122.01/457,576.81 = 125,155.61/x
  3. Step 3: Cross multiply
    305,122.01x = 457,576.81 × 125,155.61
  4. Step 4: Simplify right side
    305,122.01x = 57,268,302,176.63
  5. Step 5: Solve for x
    x = 57,268,302,176.63/305,122.01
  6. Step 6: Final answer
    x = 187,689.84

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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.