Home / 151,000.32-208,380.57-83,018.45

Finding the Fourth Proportional to 151,000.32, 208,380.57 and 83,018.45

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Solution

The fourth proportional to 151,000.32, 208,380.57 and 83,018.45 is: 114,565.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,000.32 : 208,380.57 = 83,018.45 : x
  2. Step 2: Convert to fraction form
    151,000.32/208,380.57 = 83,018.45/x
  3. Step 3: Cross multiply
    151,000.32x = 208,380.57 × 83,018.45
  4. Step 4: Simplify right side
    151,000.32x = 17,299,430,889.61
  5. Step 5: Solve for x
    x = 17,299,430,889.61/151,000.32
  6. Step 6: Final answer
    x = 114,565.53

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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.