Home / 187,836.40-259,328.28-145,500.40

Finding the Fourth Proportional to 187,836.40, 259,328.28 and 145,500.40

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Solution

The fourth proportional to 187,836.40, 259,328.28 and 145,500.40 is: 200,878.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,836.40 : 259,328.28 = 145,500.40 : x
  2. Step 2: Convert to fraction form
    187,836.40/259,328.28 = 145,500.40/x
  3. Step 3: Cross multiply
    187,836.40x = 259,328.28 × 145,500.40
  4. Step 4: Simplify right side
    187,836.40x = 37,732,368,471.31
  5. Step 5: Solve for x
    x = 37,732,368,471.31/187,836.40
  6. Step 6: Final answer
    x = 200,878.89

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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.