Home / 156,950.80-235,426.20-78,218.80

Finding the Fourth Proportional to 156,950.80, 235,426.20 and 78,218.80

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Solution

The fourth proportional to 156,950.80, 235,426.20 and 78,218.80 is: 117,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,950.80 : 235,426.20 = 78,218.80 : x
  2. Step 2: Convert to fraction form
    156,950.80/235,426.20 = 78,218.80/x
  3. Step 3: Cross multiply
    156,950.80x = 235,426.20 × 78,218.80
  4. Step 4: Simplify right side
    156,950.80x = 18,414,754,852.56
  5. Step 5: Solve for x
    x = 18,414,754,852.56/156,950.80
  6. Step 6: Final answer
    x = 117,328.20

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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.