Home / 156,985.30-216,628.41-89,003.62

Finding the Fourth Proportional to 156,985.30, 216,628.41 and 89,003.62

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Solution

The fourth proportional to 156,985.30, 216,628.41 and 89,003.62 is: 122,818.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.30 : 216,628.41 = 89,003.62 : x
  2. Step 2: Convert to fraction form
    156,985.30/216,628.41 = 89,003.62/x
  3. Step 3: Cross multiply
    156,985.30x = 216,628.41 × 89,003.62
  4. Step 4: Simplify right side
    156,985.30x = 19,280,712,684.84
  5. Step 5: Solve for x
    x = 19,280,712,684.84/156,985.30
  6. Step 6: Final answer
    x = 122,818.59

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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.