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Finding the Fourth Proportional to 162,015.87, 223,582.70 and 90,399.93

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Solution

The fourth proportional to 162,015.87, 223,582.70 and 90,399.93 is: 124,752.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,015.87 : 223,582.70 = 90,399.93 : x
  2. Step 2: Convert to fraction form
    162,015.87/223,582.70 = 90,399.93/x
  3. Step 3: Cross multiply
    162,015.87x = 223,582.70 × 90,399.93
  4. Step 4: Simplify right side
    162,015.87x = 20,211,860,429.21
  5. Step 5: Solve for x
    x = 20,211,860,429.21/162,015.87
  6. Step 6: Final answer
    x = 124,752.35

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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.