Home / 187,002.51-280,527.98-85,776.15

Finding the Fourth Proportional to 187,002.51, 280,527.98 and 85,776.15

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Solution

The fourth proportional to 187,002.51, 280,527.98 and 85,776.15 is: 128,675.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,002.51 : 280,527.98 = 85,776.15 : x
  2. Step 2: Convert to fraction form
    187,002.51/280,527.98 = 85,776.15/x
  3. Step 3: Cross multiply
    187,002.51x = 280,527.98 × 85,776.15
  4. Step 4: Simplify right side
    187,002.51x = 24,062,609,860.54
  5. Step 5: Solve for x
    x = 24,062,609,860.54/187,002.51
  6. Step 6: Final answer
    x = 128,675.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.