Home / 156,824.04-235,006.40-77,780.42

Finding the Fourth Proportional to 156,824.04, 235,006.40 and 77,780.42

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Solution

The fourth proportional to 156,824.04, 235,006.40 and 77,780.42 is: 116,556.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,824.04 : 235,006.40 = 77,780.42 : x
  2. Step 2: Convert to fraction form
    156,824.04/235,006.40 = 77,780.42/x
  3. Step 3: Cross multiply
    156,824.04x = 235,006.40 × 77,780.42
  4. Step 4: Simplify right side
    156,824.04x = 18,278,896,494.69
  5. Step 5: Solve for x
    x = 18,278,896,494.69/156,824.04
  6. Step 6: Final answer
    x = 116,556.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.