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Finding the Fourth Proportional to 152,568.40, 210,428.40 and 133,672.72

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Solution

The fourth proportional to 152,568.40, 210,428.40 and 133,672.72 is: 184,366.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,568.40 : 210,428.40 = 133,672.72 : x
  2. Step 2: Convert to fraction form
    152,568.40/210,428.40 = 133,672.72/x
  3. Step 3: Cross multiply
    152,568.40x = 210,428.40 × 133,672.72
  4. Step 4: Simplify right side
    152,568.40x = 28,128,536,593.25
  5. Step 5: Solve for x
    x = 28,128,536,593.25/152,568.40
  6. Step 6: Final answer
    x = 184,366.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.