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Finding the Fourth Proportional to 162,187.70, 223,819.35 and 90,567.50

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Solution

The fourth proportional to 162,187.70, 223,819.35 and 90,567.50 is: 124,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,187.70 : 223,819.35 = 90,567.50 : x
  2. Step 2: Convert to fraction form
    162,187.70/223,819.35 = 90,567.50/x
  3. Step 3: Cross multiply
    162,187.70x = 223,819.35 × 90,567.50
  4. Step 4: Simplify right side
    162,187.70x = 20,270,758,981.13
  5. Step 5: Solve for x
    x = 20,270,758,981.13/162,187.70
  6. Step 6: Final answer
    x = 124,983.33

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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.