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Finding the Fourth Proportional to 161,672.76, 223,078.86 and 90,050.94

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Solution

The fourth proportional to 161,672.76, 223,078.86 and 90,050.94 is: 124,253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,672.76 : 223,078.86 = 90,050.94 : x
  2. Step 2: Convert to fraction form
    161,672.76/223,078.86 = 90,050.94/x
  3. Step 3: Cross multiply
    161,672.76x = 223,078.86 × 90,050.94
  4. Step 4: Simplify right side
    161,672.76x = 20,088,461,037.13
  5. Step 5: Solve for x
    x = 20,088,461,037.13/161,672.76
  6. Step 6: Final answer
    x = 124,253.84

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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.