Home / 147,627.40-221,441.10-72,761.80

Finding the Fourth Proportional to 147,627.40, 221,441.10 and 72,761.80

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Solution

The fourth proportional to 147,627.40, 221,441.10 and 72,761.80 is: 109,142.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,627.40 : 221,441.10 = 72,761.80 : x
  2. Step 2: Convert to fraction form
    147,627.40/221,441.10 = 72,761.80/x
  3. Step 3: Cross multiply
    147,627.40x = 221,441.10 × 72,761.80
  4. Step 4: Simplify right side
    147,627.40x = 16,112,453,029.98
  5. Step 5: Solve for x
    x = 16,112,453,029.98/147,627.40
  6. Step 6: Final answer
    x = 109,142.70

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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.