Home / 132,728.40-183,168.27-72,302.40

Finding the Fourth Proportional to 132,728.40, 183,168.27 and 72,302.40

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Solution

The fourth proportional to 132,728.40, 183,168.27 and 72,302.40 is: 99,778.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,728.40 : 183,168.27 = 72,302.40 : x
  2. Step 2: Convert to fraction form
    132,728.40/183,168.27 = 72,302.40/x
  3. Step 3: Cross multiply
    132,728.40x = 183,168.27 × 72,302.40
  4. Step 4: Simplify right side
    132,728.40x = 13,243,505,524.85
  5. Step 5: Solve for x
    x = 13,243,505,524.85/132,728.40
  6. Step 6: Final answer
    x = 99,778.99

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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.