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Finding the Fourth Proportional to 161,674.92, 223,118.16 and 90,054.84

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Solution

The fourth proportional to 161,674.92, 223,118.16 and 90,054.84 is: 124,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,674.92 : 223,118.16 = 90,054.84 : x
  2. Step 2: Convert to fraction form
    161,674.92/223,118.16 = 90,054.84/x
  3. Step 3: Cross multiply
    161,674.92x = 223,118.16 × 90,054.84
  4. Step 4: Simplify right side
    161,674.92x = 20,092,870,199.89
  5. Step 5: Solve for x
    x = 20,092,870,199.89/161,674.92
  6. Step 6: Final answer
    x = 124,279.45

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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.