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Finding the Fourth Proportional to 132,969.64, 183,404.16 and 79,213.18

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Solution

The fourth proportional to 132,969.64, 183,404.16 and 79,213.18 is: 109,258.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,969.64 : 183,404.16 = 79,213.18 : x
  2. Step 2: Convert to fraction form
    132,969.64/183,404.16 = 79,213.18/x
  3. Step 3: Cross multiply
    132,969.64x = 183,404.16 × 79,213.18
  4. Step 4: Simplify right side
    132,969.64x = 14,528,026,738.83
  5. Step 5: Solve for x
    x = 14,528,026,738.83/132,969.64
  6. Step 6: Final answer
    x = 109,258.22

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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.