Home / 187,003.02-280,528.80-85,776.66

Finding the Fourth Proportional to 187,003.02, 280,528.80 and 85,776.66

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Solution

The fourth proportional to 187,003.02, 280,528.80 and 85,776.66 is: 128,676.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,003.02 : 280,528.80 = 85,776.66 : x
  2. Step 2: Convert to fraction form
    187,003.02/280,528.80 = 85,776.66/x
  3. Step 3: Cross multiply
    187,003.02x = 280,528.80 × 85,776.66
  4. Step 4: Simplify right side
    187,003.02x = 24,062,823,497.81
  5. Step 5: Solve for x
    x = 24,062,823,497.81/187,003.02
  6. Step 6: Final answer
    x = 128,676.12

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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.