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Finding the Fourth Proportional to 162,247.77, 223,879.68 and 90,618.66

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Solution

The fourth proportional to 162,247.77, 223,879.68 and 90,618.66 is: 125,041.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,247.77 : 223,879.68 = 90,618.66 : x
  2. Step 2: Convert to fraction form
    162,247.77/223,879.68 = 90,618.66/x
  3. Step 3: Cross multiply
    162,247.77x = 223,879.68 × 90,618.66
  4. Step 4: Simplify right side
    162,247.77x = 20,287,676,602.83
  5. Step 5: Solve for x
    x = 20,287,676,602.83/162,247.77
  6. Step 6: Final answer
    x = 125,041.33

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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.