Home / 151,000.08-208,380.25-83,018.21

Finding the Fourth Proportional to 151,000.08, 208,380.25 and 83,018.21

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Solution

The fourth proportional to 151,000.08, 208,380.25 and 83,018.21 is: 114,565.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,000.08 : 208,380.25 = 83,018.21 : x
  2. Step 2: Convert to fraction form
    151,000.08/208,380.25 = 83,018.21/x
  3. Step 3: Cross multiply
    151,000.08x = 208,380.25 × 83,018.21
  4. Step 4: Simplify right side
    151,000.08x = 17,299,355,563.98
  5. Step 5: Solve for x
    x = 17,299,355,563.98/151,000.08
  6. Step 6: Final answer
    x = 114,565.21

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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.