Home / 145,122.28-200,281.26-80,603.89

Finding the Fourth Proportional to 145,122.28, 200,281.26 and 80,603.89

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Solution

The fourth proportional to 145,122.28, 200,281.26 and 80,603.89 is: 111,240.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,122.28 : 200,281.26 = 80,603.89 : x
  2. Step 2: Convert to fraction form
    145,122.28/200,281.26 = 80,603.89/x
  3. Step 3: Cross multiply
    145,122.28x = 200,281.26 × 80,603.89
  4. Step 4: Simplify right side
    145,122.28x = 16,143,448,650.10
  5. Step 5: Solve for x
    x = 16,143,448,650.10/145,122.28
  6. Step 6: Final answer
    x = 111,240.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.