Home / 187,835.40-259,326.90-145,499.40

Finding the Fourth Proportional to 187,835.40, 259,326.90 and 145,499.40

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Solution

The fourth proportional to 187,835.40, 259,326.90 and 145,499.40 is: 200,877.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,835.40 : 259,326.90 = 145,499.40 : x
  2. Step 2: Convert to fraction form
    187,835.40/259,326.90 = 145,499.40/x
  3. Step 3: Cross multiply
    187,835.40x = 259,326.90 × 145,499.40
  4. Step 4: Simplify right side
    187,835.40x = 37,731,908,353.86
  5. Step 5: Solve for x
    x = 37,731,908,353.86/187,835.40
  6. Step 6: Final answer
    x = 200,877.51

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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.