Home / 150,856.76-208,219.74-87,185.36

Finding the Fourth Proportional to 150,856.76, 208,219.74 and 87,185.36

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Solution

The fourth proportional to 150,856.76, 208,219.74 and 87,185.36 is: 120,337.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,856.76 : 208,219.74 = 87,185.36 : x
  2. Step 2: Convert to fraction form
    150,856.76/208,219.74 = 87,185.36/x
  3. Step 3: Cross multiply
    150,856.76x = 208,219.74 × 87,185.36
  4. Step 4: Simplify right side
    150,856.76x = 18,153,712,991.01
  5. Step 5: Solve for x
    x = 18,153,712,991.01/150,856.76
  6. Step 6: Final answer
    x = 120,337.42

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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.