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Finding the Fourth Proportional to 162,210.75, 223,823.62 and 90,591.05

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Solution

The fourth proportional to 162,210.75, 223,823.62 and 90,591.05 is: 125,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,210.75 : 223,823.62 = 90,591.05 : x
  2. Step 2: Convert to fraction form
    162,210.75/223,823.62 = 90,591.05/x
  3. Step 3: Cross multiply
    162,210.75x = 223,823.62 × 90,591.05
  4. Step 4: Simplify right side
    162,210.75x = 20,276,417,083.68
  5. Step 5: Solve for x
    x = 20,276,417,083.68/162,210.75
  6. Step 6: Final answer
    x = 125,000.45

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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.