Home / 156,986.02-216,635.97-89,009.20

Finding the Fourth Proportional to 156,986.02, 216,635.97 and 89,009.20

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Solution

The fourth proportional to 156,986.02, 216,635.97 and 89,009.20 is: 122,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,986.02 : 216,635.97 = 89,009.20 : x
  2. Step 2: Convert to fraction form
    156,986.02/216,635.97 = 89,009.20/x
  3. Step 3: Cross multiply
    156,986.02x = 216,635.97 × 89,009.20
  4. Step 4: Simplify right side
    156,986.02x = 19,282,594,380.92
  5. Step 5: Solve for x
    x = 19,282,594,380.92/156,986.02
  6. Step 6: Final answer
    x = 122,830.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.