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Finding the Fourth Proportional to 161,430.72, 222,884.16 and 101,025.84

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Solution

The fourth proportional to 161,430.72, 222,884.16 and 101,025.84 is: 139,484.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,430.72 : 222,884.16 = 101,025.84 : x
  2. Step 2: Convert to fraction form
    161,430.72/222,884.16 = 101,025.84/x
  3. Step 3: Cross multiply
    161,430.72x = 222,884.16 × 101,025.84
  4. Step 4: Simplify right side
    161,430.72x = 22,517,059,486.69
  5. Step 5: Solve for x
    x = 22,517,059,486.69/161,430.72
  6. Step 6: Final answer
    x = 139,484.35

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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.