Home / 162,318.74-223,972.49-90,699.35

Finding the Fourth Proportional to 162,318.74, 223,972.49 and 90,699.35

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Solution

The fourth proportional to 162,318.74, 223,972.49 and 90,699.35 is: 125,149.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,318.74 : 223,972.49 = 90,699.35 : x
  2. Step 2: Convert to fraction form
    162,318.74/223,972.49 = 90,699.35/x
  3. Step 3: Cross multiply
    162,318.74x = 223,972.49 × 90,699.35
  4. Step 4: Simplify right side
    162,318.74x = 20,314,158,367.77
  5. Step 5: Solve for x
    x = 20,314,158,367.77/162,318.74
  6. Step 6: Final answer
    x = 125,149.81

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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.