Home / 480,147.28-720,221.24-125,160.40

Finding the Fourth Proportional to 480,147.28, 720,221.24 and 125,160.40

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Solution

The fourth proportional to 480,147.28, 720,221.24 and 125,160.40 is: 187,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,147.28 : 720,221.24 = 125,160.40 : x
  2. Step 2: Convert to fraction form
    480,147.28/720,221.24 = 125,160.40/x
  3. Step 3: Cross multiply
    480,147.28x = 720,221.24 × 125,160.40
  4. Step 4: Simplify right side
    480,147.28x = 90,143,178,486.90
  5. Step 5: Solve for x
    x = 90,143,178,486.90/480,147.28
  6. Step 6: Final answer
    x = 187,740.68

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1.5x scale

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.