Home / 150,838.84-208,145.46-87,180.76

Finding the Fourth Proportional to 150,838.84, 208,145.46 and 87,180.76

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Solution

The fourth proportional to 150,838.84, 208,145.46 and 87,180.76 is: 120,302.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,838.84 : 208,145.46 = 87,180.76 : x
  2. Step 2: Convert to fraction form
    150,838.84/208,145.46 = 87,180.76/x
  3. Step 3: Cross multiply
    150,838.84x = 208,145.46 × 87,180.76
  4. Step 4: Simplify right side
    150,838.84x = 18,146,279,393.35
  5. Step 5: Solve for x
    x = 18,146,279,393.35/150,838.84
  6. Step 6: Final answer
    x = 120,302.43

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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.