Home / 150,820.17-208,202.72-87,145.67

Finding the Fourth Proportional to 150,820.17, 208,202.72 and 87,145.67

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Solution

The fourth proportional to 150,820.17, 208,202.72 and 87,145.67 is: 120,301.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,820.17 : 208,202.72 = 87,145.67 : x
  2. Step 2: Convert to fraction form
    150,820.17/208,202.72 = 87,145.67/x
  3. Step 3: Cross multiply
    150,820.17x = 208,202.72 × 87,145.67
  4. Step 4: Simplify right side
    150,820.17x = 18,143,964,053.48
  5. Step 5: Solve for x
    x = 18,143,964,053.48/150,820.17
  6. Step 6: Final answer
    x = 120,301.97

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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.