Home / 155,115.92-214,026.76-90,555.84

Finding the Fourth Proportional to 155,115.92, 214,026.76 and 90,555.84

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Solution

The fourth proportional to 155,115.92, 214,026.76 and 90,555.84 is: 124,947.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,115.92 : 214,026.76 = 90,555.84 : x
  2. Step 2: Convert to fraction form
    155,115.92/214,026.76 = 90,555.84/x
  3. Step 3: Cross multiply
    155,115.92x = 214,026.76 × 90,555.84
  4. Step 4: Simplify right side
    155,115.92x = 19,381,373,147.47
  5. Step 5: Solve for x
    x = 19,381,373,147.47/155,115.92
  6. Step 6: Final answer
    x = 124,947.67

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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.