Home / 156,986.72-216,635.08-89,008.26

Finding the Fourth Proportional to 156,986.72, 216,635.08 and 89,008.26

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Solution

The fourth proportional to 156,986.72, 216,635.08 and 89,008.26 is: 122,827.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,986.72 : 216,635.08 = 89,008.26 : x
  2. Step 2: Convert to fraction form
    156,986.72/216,635.08 = 89,008.26/x
  3. Step 3: Cross multiply
    156,986.72x = 216,635.08 × 89,008.26
  4. Step 4: Simplify right side
    156,986.72x = 19,282,311,525.76
  5. Step 5: Solve for x
    x = 19,282,311,525.76/156,986.72
  6. Step 6: Final answer
    x = 122,827.66

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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.