Home / 150,913.18-208,244.28-87,271.48

Finding the Fourth Proportional to 150,913.18, 208,244.28 and 87,271.48

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Solution

The fourth proportional to 150,913.18, 208,244.28 and 87,271.48 is: 120,425.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,913.18 : 208,244.28 = 87,271.48 : x
  2. Step 2: Convert to fraction form
    150,913.18/208,244.28 = 87,271.48/x
  3. Step 3: Cross multiply
    150,913.18x = 208,244.28 × 87,271.48
  4. Step 4: Simplify right side
    150,913.18x = 18,173,786,517.13
  5. Step 5: Solve for x
    x = 18,173,786,517.13/150,913.18
  6. Step 6: Final answer
    x = 120,425.44

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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.