Home / 156,037.20-234,055.80-77,305.20

Finding the Fourth Proportional to 156,037.20, 234,055.80 and 77,305.20

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Solution

The fourth proportional to 156,037.20, 234,055.80 and 77,305.20 is: 115,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,037.20 : 234,055.80 = 77,305.20 : x
  2. Step 2: Convert to fraction form
    156,037.20/234,055.80 = 77,305.20/x
  3. Step 3: Cross multiply
    156,037.20x = 234,055.80 × 77,305.20
  4. Step 4: Simplify right side
    156,037.20x = 18,093,730,430.16
  5. Step 5: Solve for x
    x = 18,093,730,430.16/156,037.20
  6. Step 6: Final answer
    x = 115,957.80

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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.