Home / 156,983.04-216,627.84-89,919.36

Finding the Fourth Proportional to 156,983.04, 216,627.84 and 89,919.36

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Solution

The fourth proportional to 156,983.04, 216,627.84 and 89,919.36 is: 124,083.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,983.04 : 216,627.84 = 89,919.36 : x
  2. Step 2: Convert to fraction form
    156,983.04/216,627.84 = 89,919.36/x
  3. Step 3: Cross multiply
    156,983.04x = 216,627.84 × 89,919.36
  4. Step 4: Simplify right side
    156,983.04x = 19,479,036,730.98
  5. Step 5: Solve for x
    x = 19,479,036,730.98/156,983.04
  6. Step 6: Final answer
    x = 124,083.70

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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.