Home / 187,209.56-280,702.06-85,880.59

Finding the Fourth Proportional to 187,209.56, 280,702.06 and 85,880.59

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Solution

The fourth proportional to 187,209.56, 280,702.06 and 85,880.59 is: 128,769.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,209.56 : 280,702.06 = 85,880.59 : x
  2. Step 2: Convert to fraction form
    187,209.56/280,702.06 = 85,880.59/x
  3. Step 3: Cross multiply
    187,209.56x = 280,702.06 × 85,880.59
  4. Step 4: Simplify right side
    187,209.56x = 24,106,857,610.56
  5. Step 5: Solve for x
    x = 24,106,857,610.56/187,209.56
  6. Step 6: Final answer
    x = 128,769.37

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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.