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Finding the Fourth Proportional to 162,006.93, 223,580.79 and 90,400.91

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Solution

The fourth proportional to 162,006.93, 223,580.79 and 90,400.91 is: 124,759.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,006.93 : 223,580.79 = 90,400.91 : x
  2. Step 2: Convert to fraction form
    162,006.93/223,580.79 = 90,400.91/x
  3. Step 3: Cross multiply
    162,006.93x = 223,580.79 × 90,400.91
  4. Step 4: Simplify right side
    162,006.93x = 20,211,905,756.62
  5. Step 5: Solve for x
    x = 20,211,905,756.62/162,006.93
  6. Step 6: Final answer
    x = 124,759.51

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1.5x scale

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.