Home / 187,137.30-280,965.15-147,738.90

Finding the Fourth Proportional to 187,137.30, 280,965.15 and 147,738.90

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Solution

The fourth proportional to 187,137.30, 280,965.15 and 147,738.90 is: 221,812.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,137.30 : 280,965.15 = 147,738.90 : x
  2. Step 2: Convert to fraction form
    187,137.30/280,965.15 = 147,738.90/x
  3. Step 3: Cross multiply
    187,137.30x = 280,965.15 × 147,738.90
  4. Step 4: Simplify right side
    187,137.30x = 41,509,482,199.34
  5. Step 5: Solve for x
    x = 41,509,482,199.34/187,137.30
  6. Step 6: Final answer
    x = 221,812.98

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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.