Home / 156,981.96-216,558.97-93,274.65

Finding the Fourth Proportional to 156,981.96, 216,558.97 and 93,274.65

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Solution

The fourth proportional to 156,981.96, 216,558.97 and 93,274.65 is: 128,673.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,981.96 : 216,558.97 = 93,274.65 : x
  2. Step 2: Convert to fraction form
    156,981.96/216,558.97 = 93,274.65/x
  3. Step 3: Cross multiply
    156,981.96x = 216,558.97 × 93,274.65
  4. Step 4: Simplify right side
    156,981.96x = 20,199,461,897.92
  5. Step 5: Solve for x
    x = 20,199,461,897.92/156,981.96
  6. Step 6: Final answer
    x = 128,673.78

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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.